In order to do specific modifications on solid, I Downgraded it to faces on Draft workbench. But it does not Upgrade back to Solid anymore on this workbench. So I am using "Advanced utility to create shapes" to create Shell from Faces. This requires to select All faces. If I am using CTRL and clicking on every face of model, then it works fine. But that is really inefficient way when you have more than 400 faces on the model.
I have tried CTRL+A, but that selects vertices and edges too, and result is "Select two or more faces" error on "Advanced utility to create shapes" tool.
Option "All faces" does not do anything.
Is there any better way to select all faces (and faces only) in order to convert Faces to Shell?
OS: Ubuntu 18.04.4 LTS (Unity:Unity7:ubuntu/unity)
Word size of OS: 64-bit
Word size of FreeCAD: 64-bit
Build type: Release
Python version: 3.6.9
Qt version: 5.9.5
Coin version: 4.0.0a
OCC version: 7.3.0
Locale: English/UnitedStates (en_US)