How to properly save my condo/snapshot before uploading to the Steam Workshop

General Questions
1

I got frustrated to the fact that every time I save my condo, create a new snapshot, then save my condo again, upload to the Workshop, test my upload, and get NOTHING.

Is there a guide to properly create a new snapshot, save a condo BEFORE uploading to the Workshop?

2

It’s been 99 days since I haven’t found a solution to properly save my condo and/or saving my snapshot in Tower Unite. Not a single “condo saving” tutorial on the Internet.