Access to Workspace with pyside2 GUI

[magic]

Hi all,
I have my GUI made with PySide2 and I do some action in first QPlainTextEdit() window.
 I'm printing my selected groups, I would like to know did it is possible to move or copy my workspace tree to QPlainTextEdit() window or QTextEdit() or any others possibility , to get my work more safety , means selecting my groups in my GUI, not direct in my Workspace ?? Coz last week I made some error and I lost my work, I had to start from beginning(from my save), We can do it with python API ??