@Chanel, good morning (at least here in the USA central time zone). @Grace did a great job with the pdf manuals. They are still quite relevant. She and I were active doing lots of documentation in 2017 and I for one have fallen down on the job.
This forum is what inspires me to keep going, so please feel free to keep asking questions. If I feel there is somebody out there reading, I will be more determined to keep writing. The software changes have slowed way down, so there is little excuse for the documentation not to catch up.
The main wiki page may be helpful as well. You will see that the name change has not been completed through the documentation, for example the URL is https://wiki.valentinaproject.org/wiki/Main_Page
When you go there, you will see documentation on the Seamly2D and SeamlyME project. If something does not make sense, please ask about it here. Welcome and we are delighted that you like the software.