Good afternoon

I have a pre-post design with resting state scans. For both the pre and the post I have two sessions of resting state scan. My setup in conn has 183 subjects each with 4 sessions (2 pre and 2 post scans). Then within the condition setup I differentiate between the scans for pre and the scans for post. When I run the ART and look at the 2nd level covariate QC_ValidScans I am finding that this is the total # of ValidScans collapsed across all 4 sessions. However, I am interested in making sure there is enough usable scan data (at least 5 minutes) for pre and for post separately.

Is there any way to separate the QC_ValidScans for pre and QC_ValidScans for post as defined by the condition setup, or, if not, is there is a way to just split it by session and I can calculate the total number of ValidScans from there? 

Thank you!
Daniel