I want to use QTAxis, is it meant to be used?

for the load last button - do you have the preference fine set up in the INI
PREFERENCE_FILE_PATH = WORKINGFOLDER/qtaxis.pref

Yes I have meant to look at the MDI scroll problem.

Escape button is a Qtvcp default keyBinding and could be redefined,

QSplitter is what to use to have a dragable window split. From memory it's kinda hidden in Qtdesigner - google is your friend.

Here's a first pass at making the window splitter rather than layout, but it's untested:

github.com/LinuxCNC/linuxcnc/compare/mas...achi/qtaxis-splitter

Making the XML diff be sane for the first commit was a bit of a headache, but I wanted you to be able to see that it was almost no changes to switch it.

I only set the left box to be up to 100px wider as an arbitrary choice... I'm not sure if making it collapsible could be useful, but I turned it off for now.

For the right panel is there an easy way to make it appear, or do I need to create a thing for that?

Do you mean to add a panel on the very right side?
Sample INI:
[DISPLAY]
EMBED_TAB_NAME=Right side demo
EMBED_TAB_COMMAND=qtvcp vismach_mill_xyz
EMBED_TAB_LOCATION=rightPanel

qtvcp usage output says final arg should be a .ui file (first line in the output) though I think it actually can be both a .ui file and a screen name? I'm not sure

So in testing my .ui file I've lost the gcode_editor object and the minimum size isn't being respected.

last arg is the screen/panel 's base name.