When I copy a whole group of labels and / or controls, is there a way to paste the left upper corner of the group on certain coordinates, so as all the components in the pasted group keep their original relative distances intact?

I still use version 3.19.5 .

Maybe if you use "Copy at same place" it will keep the positions?

The initial paste coordinate is limited in the main IDE. it logically finds the nearest place depending where you click.

Only in my IDE can you select "Paste exactly at mouse" so it pastes top-left of the group right where the mouse is.
Redo "Paste here" (d271a34b) · Commits · Bruce Steers / gambas · GitLab

 There seems to be no way for a targeted form elements group move. Doesn't matter, perhaps this idea will find a way into the ToDo's for a future version!

 Dont know if this will work, but try putting the set of controls in some type of conatiner, say a panel with no arrangeement. Copy the panel and paste it, then move where you want it and delete "container only"
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(EDIT: I may try that igain with the spoll chicker turned on.)