Ahhh... thank you, thank you...
Headings > General > UNCHECK Always show info area and main menu...
Problem resolved.

@phaedrux @dc42 @Red-Sand-Robot
Got through loading 1.23 and the M588 worked first try.
Thanks for all the help....and patience...ha.
Feel like I'm still in 3D printing kindergarten, but amazed how good the DuetWiFi is. That old chinese board, drivers and Marlin were driving me crazy.

Just bought a second printer - another disowned, unloved, pre-assembled FT5. This kit does build into a good printer with some TLC. Some mechanical and electrical upgrades and it should be great....but only with another Duet and PDue.
So...should I get another DuetWF now, or is a newer version maybe coming sometime soon?

I just started with Duet and GCode. Here's a bit more info that I just stumbled through.
Sometimes the answers from experienced users assume we already know much more than we do (for me anyway).
When you look at the graphic, there are XYZ arrows at one corner of the grid. Those correspond to the corner that is your origin...the lowest X and Y values in your scan setup.
Place your cursor over the grid. Rotate the wheel on your mouse to enlarge/shrink the image. Cool. By using the right and left buttons you can rotate and tilt the image. Rotate the image til you get the origin (arrow icons) where you want it. For me, that was lower left.
The next helpful tip is to use the "Top View" button on the lower right to see the bed flat from the top. Each scan point is highlighted with a white dot. Place the cursor on that dot and you will see the actual Z value at that point. Make a chart of the four corners and write down the values. As you mechanically adjust your corners and then rescan the bed, you can do a final mechanical leveling - best done after a rough levelling with paper under the nozzle method. After getting your mechanical level dialed in, auto-leveling can take over for prints.
Another thought. In my old 300x300mm bed (I have a used printer), the edges and corners were starting to release the PEI film. Since I almost always print in a smaller area anyway, I set the scan pattern well inside the edges of the bed to focus on the area most used. Can always be changed as needed.

I changed over to three point bed support. Way easier than 4 point and worth the effort.
See this:
https://drmrehorst.blogspot.com/2017/07/3-point-print-bed-leveling-vs-4-point.html
I didn't do his full blown mod, just went to three simple spring loaded posts. Works great.
Seems that even with auto bed leveling, you should keep some degree of mechanical adjustment available.
I think most of the above is correct.

Here's my FT5 R-2 config. I copied it below with the heading of my post asking for comments about it. Got a lot of good feedback. Look for the whole thread on June 4 to see more details.
This config runs really well and is set up primarily for ABS temps. I make most process settings in Simplify 3D, and use S3D scripts to start and finish prints.
Note too that I use an inductive height sensor, a filament runout sensor, have both Y steppers on separate drives, have changed pulley sizes so steps are non-FT, and have customized some of the files, so you may need more info than shown in the config.

Review rookie config.g please
DanL 4 Jun 2019, 15:10
The Duet WiFi has made my FolgerTech FT5-2 printer run amazingly well. My general config.g settings seem to work really well over a wide speed range, for large and small parts and for ABS and PLA. (I use S3D and its' start/stop scripts for individual run settings)

But I have a few questions about the config.g structure (syntax? whatever it's called) and how some of the Gcode is used. Some specific Q's are embedded in config line comments below.

Could I please ask for comments on what might need to change, be added or deleted?
I print 3-5x per week, wide range of parts, as a hobbyist. No need for efficiency or fancy config...just want a proper, basic config.g.

Thank you.

; Configuration file for Duet WiFi (firmware version 1.21)
; generated by RepRapFirmware Configuration Tool v2 on Sat Apr 13 2019 09:39:04 GMT-0700 (Pacific Daylight Time)

; Ver. 27APR2019 - New Duet Board
; Ver. 11MAY2019 - update movement settings

; General preferences
M111 S0 ; Debug off
G90 ; Send absolute coordinates...
M83 ; ...but relative extruder moves
G21 ; set units to mm
M912 P0 S5 ; CPU temp calibration offset
M555 P2 ; Set output to look like Marlin
; Network
M550 P"FT5-2 Mod Duet" ; Set machine name
M552 S1 ; Enable network
;M587 S"SHOP2" P"'X'X'X'Xnnnn" ; Config access point. Delete this line once connected
M586 P0 S1 ; Enable HTTP
M586 P1 S0 ; Disable FTP
M586 P2 S0 ; Disable Telnet
M575 P1 B57600 S1 ; Set auxiliary serial port baud rate and require checksum
(for PanelDue)

; Drives
M584 X0 Y1:4 Z2 E3 ; sync left and right Y steppers on drivers 1 and 4.
M569 P0 S1 ; X Drive 0 forward
M569 P1 S0 ; Left Y Drive 1 backward
M569 P4 S1 ; Right Y Drive 4 (E1) forward
M569 P2 S0 ; Z Drive 2 backward. Bed moves down for Z+, up for Z-
M569 P3 S1 ; E0 Drive 3 forward

M350 X16 Y16 Z16 I1 ; Configure microstepping with interpolation
M350 E16 I1 ; may change extruder to 32 later
M92 X100.00 Y100.00 Z1000.00 E420.00 ; Set steps per mm E calibrated
M566 X800.00 Y800.00 Z30.00 E1000.00 ; Set maximum instantaneous speed changes - JERK (mm/min)
M203 X9000.00 Y9000.00 Z1000.00 E1000.00 ; Set maximum speeds (mm/min)
M201 X800.00 Y800.00 Z500.00 E800.00 ; Set max accelerations (mm/s^2) (was 2k,2k,60,800 pre 11may19)
M906 X900.00 Y800.00 Z1000.00 E800.00 I40 ; Set motor currents (mA) and motor idle factor in per cent

; Axis Limits
M208 X0 Y0 Z0 S1 ; Set axis minima
M208 X300 Y300 Z350 S0 ; Set axis maxima

; End Stops
M574 X2 Y2 S0 ; 2=endstops at x300 y300 high end. S0=active low, N/O switch
M591 D0 P2 C3 S1 ; Filament sensor. D=E0, P=NC mswitch, C3=EO endstop, S1=enable, 0=disable

; Z-Probe
M574 Z1 S0 ; Set Z probe as Z endstop
M558 P5 H3 R0.2 F200 T6000 I1 ; P5 is switch, H 3mm, F speed, Trav speed, I1 invert activation, Recovery time
M557 X28:280 Y24:276 S42 ; Define mesh grid 7x7, includes inductive sensor offset from nozzle X-19mm
G31 P500 X-19 Y0 Z0.5 ; Set Z probe trigger value, offset and trigger height

; Heaters M307 params… Run M307 H# for params report

; Bed
M305 P0 T100000 B3950 R4700 S"Bed" ; Set thermistor + ADC parameters for heater 0 Bed
M143 H0 S120 ; Set temperature limit for heater 0 to 120C
M307 H0 A150.5 C1276.9 D4.4 V24 B0 ; PID

; Extruder
M305 P1 T100000 B3950 R4700 ; Set thermistor + ADC parameters for heater 1
M143 H1 S280 ; Set temperature limit for heater 1 to 280C
M307 H1 A395.4 C174 D4.1 V24 B0 ; PID

; Chamber... No heater, but want to see chamber T
M305 P2 T100000 B3950 R4700 ; Set thermistor + ADC parameters for heater 2
; M141 H2 ; Assign chamber heater Disable heater assignment with neg number
; M143 H2 S80 ; Set temperature limit for heater 2 to 80C
; M307 H2 ; chamber heater operates in bang-bang mode

; Fans
;M106 P0 S0 I0 F500 H T45 ; Set fan 0 value, PWM signal inversion and frequency. Thermostatic control is turned on
;M106 P1 S1 I0 F500 H1 T45 ; Set fan 1 value, PWM signal inversion and frequency. Thermostatic control is turned on

; Tools
M563 P0 D0 H1 ; Define tool 0 Uses E0 and Heater 1
G10 P0 X0 Y0 Z0 ; Set tool 0 axis offsets
G10 P0 S0 R0 ; Set initial tool 0 active S and standby R temperatures
M302 P0 S190 R190 ; set min extrude /retract T's
M563 P1 S"Chamber" H2 ; creates tool w/no drive, but displays chamber T. No heater

; Automatic saving after power loss is not enabled

; Custom settings are not configured

M501 ;load config.g on startup

Apologies for the rant and for the extreme hijack. Was a bad evening....
Sorry.

@danl Thank you so much for the fast response and for summarizing steps and providing the links.
I'll give it a shot.

Have not been paying attention to Duet firmware updates...enjoy printing a lot but have no software savvy so ignore that. Just a hobbyist printer.
Would like to update software because I get error messages (e.g.obsolete homing command) but looks like a multi-step process to update. All functions still work despite the error messages.
Question is whether I even can update from current status and if its necessary.
Thanks for any advice.
Duet WiFi 1.02
RepRap Firmware for Duet 2.02 WiFi/Ethernet
WiFi Server Version 1.23
Web Interface Version 1.22.6 (Hammacher)

Thank you....will try today.

Reactivating printer after almost a year is storage. Hobbyist printer running Duet2 wifi on v.1.21.
Control one bed, one extruder, X and Y...pretty simple.
Documentation has multistep process for update.
Is it worth the trouble to go first to 3.0, then 3.1, then reconfigure?
What would the main benefits of running 3.1 be?
I'm very amateur with the firmware stuff...any "watch-outs" when doing the change?
Thank you.

Uh...never mind... my lack of knowledge. Just put in the proper address for my Duet and everything is running fine.

Cannot for the life of me find this app. The Ipad is running an old version of Safari.
I tried to download Chrome, but it's no longer available for this Ipad.
GitHub message is that it doesnt support this Ipad/Safari either.
Updating Safari now to see if that helps.
Any hints welcome....thank you.

@zapta
I'm not that sophisticated a user yet. Just looking at a simple first test run to see the effects of changing PA. Pic shows what I looked for....artifacts on surface of a cylindrical object...an initial priority for me.
@Phaedrux
Thank you for your always detailed evaluation and feedback.
I will increase the E jerk and accel.

Pic shows results...PA is a pretty cool. I'll re-test on a simpler model with other settings soon, but I now have an idea of how effective PA can be.
The 0.02 PA gave a result well within my acceptable range, and definitely better than I've had previously. May not show in the pic, but the seam is narrow and very smooth. The endpoints were aligned just to more easily see differences.

I am going to try using pressure advance for the first time. Planning to test starting with range 0.05 - 0.15 "on-the-fly" with panel due.
Below are my current typical settings. Wondering if I could get some advice on how these might be changed if using pressure advance. Use S3D.
Have Folger Tech FT5, E3D Titan extruder, direct feed, Volcano w/0.4 nozzle.
My typical printing:
ABS, 245-255C, bed110C, 0.2layer, speeds 60-80+mm/sec, 0.2 layer, 25-90% infill, 20-30% outline overlap.
Retraction usually 0.3-0.7mm, no extra restart, lift 0.15mm, retract speed 60mm/sec.
Rarely use coast but sometimes at about 0.3mm.
M566 X800.00 Y800.00 Z30.00 E1000.00 ; Set maximum instantaneous speed changes M203 X9000.00 Y9000.00 Z2000.00 E4000.00 ; Set maximum speeds (mm/min)
M201 X1000.00 Y1000.00 Z500.00 E1000.00 ; Set maximum accelerations (mm/s^2)

Any feedback appreciated. Thanks much.

; resume.g
; called before a print from SD card is resumed
G1 R1 X0 Y0 Z5 F6000 ; go to 5mm above position of the last print move
G1 R1 X0 Y0 ; go back to the last print move
M83 ; relative extruder moves
G1 E10 F3600 ; extrude 10mm of filament

The way I read the above is that the extruder will rise 5mm, move to the last print position and then 10mm of filament will be deposited on top of that pause print position. Shouldn't the extrude filament command be before the move to the print ...as an extruder priming step at 0,0....and then move the extruder to the last position to start printing again?

@stevo said in Pay for config / json files for my corexy printer build.:

; generated by RepRapFirmware Configuration Tool v2 on Wed Jun 26 2019 19:39:28 GMT+0100 (BST)
G1 R1 X0 Y0 Z5 F6000 ; go to 5mm above position of the last print move
G1 R1 X0 Y0 ; go back to the last print move
M83 ; relative extruder moves
G1 E10 F3600 ; extrude 10mm of filament

More of a question than a suggestion....
Theway I read the above is that 10mm of filament will be deposited on top of the last print position. Shouldn't the extrude filament command be first...as a priming step....then move the extruder to the last position to start printing again?
This is a really helpful thread...thanks!