I see a function on the sidebar for adding a hierarchical sheet. Is that what I use?
Yes. see picture. Click icon, draw sheet-rectangle, than opens the Sheet-poperties dialog.
Sheet name: any string you like
Sheet File: This is the filename of the new generated (added) subsheet.
Now draw/insert your second subsheet: give it a different Sheet Name and different Filename.
If you have two subsheets placed into your rootsheet:
- doubleclick the subsheet-rectangle and this subsheet opens.
- Now open another kicad-instance with your older (already finished) schematics. Open that schematic. CTRL-A and CTRL-C (to select all and copy all).
- back to the new subsheet: CTRL-V to paste the complete shematic content
Also, I see “File → Insert Schematic Sheet Content”. How is that used?
Don’t know. Never used. Maybe some user can help.
Still a bit confused.
Just play around. If you do it on a “test-project” normally nothing bad can happen.