I used SW about 5 years ago and to be honest, wasn't that great using it since it was not an everyday task. But now I want to improve and be profienct at Solidworks. Is there a good all encompassing sheet (or ? ) that lists what each of the symbols mean in front of the parts used in assembly drawings?  I am referring to the +, -, feather in front of part (assume means lightweight?),  the regen stoplight symbol and any other symbol that shows up at the beginning of the parts name as used in Assembly models. It would be great to have an easy access reference to them. See picture I attached for better description of what I am trying to ask.

And while I am asking, When I do a split in the left window to list the Configurations, why does it disappear or shorten up all the way to the top and I have to drag the lower display part of it down to show the upper half again.