BIM: Trimex for straight wall segments start/end face

Is there an existing issue for this?

• I have searched the existing issues

Problem description

When using trimex in BIM, a new copy of the object/face is created. It would be great when using trimex on the start or end face of a straight wall, to just increase or decrease the wall segment length, similar if I would use the trimex command directly on the underlying wire to shorten/lengthen the wall segment.

Currently I cannot shorten the wall itself, as a new object is created, so I have to trimex the underlying wire which could be located anywhere in the document, without the possibility to reference/snap to local features.

Full version info

OS: Windows 11 build 26100
Architecture: x86_64
Version: 1.1.0dev.39708 (Git) Conda
Build type: Release
Branch: main
Hash: 173ff4da1ef4f075d56c0dc617d1bf00d5f49d4b
Python 3.11.11, Qt 5.15.15, Coin 4.0.3, Vtk 9.3.0, OCC 7.8.1
Locale: German/Germany (de_DE)
Stylesheet/Theme/QtStyle: FreeCAD Dark.qss/FreeCAD Dark/Fusion
Installed mods: 
  * CfdOF 1.29.4
  * CurvedShapes 1.0.13
  * Curves 0.6.52
  * dodo 1.0.1
  * fasteners 0.5.33
  * freecad.gears 1.3.0
  * FreeCAD_SketchArch (Disabled)
  * Manipulator 1.5.7
  * OpenTheme 2024.9.1
  * OpticsWorkbench 1.0.26
  * Rocket 4.0.1
  * sheetmetal 0.6.11
  * Silk 0.1.5

Subproject(s) affected?

BIM

Anything else?

Related: https://github.com/FreeCAD/FreeCAD/issues/5608

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