Hi,

First of all, let me say I have never used this tool.

I have a block diagram drawing with 8 sheets.  Sheets 7 and 8 are empty.  If I add a viewport to sheet 7 I get the entire model.

If I copy viewport from sheet 6 to sheet 7, I only see the sheet 6 data.  What associates the 8 parts of the model with the sheets?