Old dog switching from VW 12 to 2013 - Trimming lines also affects adjacent rectangles

[Kerschbaumer]

When I draw in 2d and build up my sections - I often cut through lines by drawing a line, trim what it crosses, then delete the line.  Those trim lines often run alongside rectangles I draw that are things like plates and joists.  In vw13 when I perform the trim - it converts the rectangle into a ployline and removes the side of the rectangle the trim line runs along.  IS there a setting or something I am missing that I can set to not affect the rectangles?  Screen shot attached

[rDesign]

I'm not sure if Vw2013 has this capability (I know that it is in 2015), if you are using the 'Trim Tool' it has a 'Currently Selected Objects' mode where it will trim only the selected objects.

Trim Tool - Vw2015 Help

[PeterT]

If you really need this side of the rectangle, just check the "Closed" box in the Object Info palette with your polygon selected after you operation, and it will fill the missing line back in.