I've checked the post with the same title written here in 2015 and I must be completely stupid but did not understand the explanations; the was to the link into VideoCopilot.
My very precise problem is this one. I want to use some letters to create absent primitives in the E3D pack. I don't want to use C4D or any other program . For my purpose I'll two different letters which I'll extrude in the SAME one and only scene in E3D.
How should I do that, as the "custom text and masks" option is relative to all the groups and not attached to each group individually?
Thanks in advance