I was hoping to find a live chat forum but not having any luck.. maybe some one can direct me.  I am very very new to Advance Steel and have lots of questions.   I need to know how to trim material such as a diagonal brace (in have at middle) . I positioned the UCS  for the brace, made a 
construction line and used the trim...the result was one side disappeared.... not the result I'm looking for.  I just want to split the material in half. I am sure this is very elementary but like I said I am very very new . Would any of you have a simple answer?  It would greatly be appreciated.