How do I ensure that the SnapGene Launch window appears on macOS when no other window is visible?
On macOS, SnapGene 6.2 or earlier shows the Launch window on startup, but by default the Launch window will not reappear when all other windows are closed.
Open Preferences
Click SnapGene → Preferences. If necessary, select "General" in the sidebar.
Check the option to "Show the Launch window when all other windows have been closed".