DVT SystemVerilog IDE User Guide
Rev. 19.1.25, 19 July 2019

26.7 Diagram Toolbar

Select Types (select starting types for diagram)
Select Instances (choose which design element instances are relevant)
Filter (hide or highlight specific diagram elements using regex)
Preferences (change diagram preferences)
Save As (save diagram as image)
Refresh
Zoom In
Zoom Out
Fit Canvas
Pin (pin diagram window)
Inspect Panel (show or hide inspect panel)