When I select 'Window' does not respond when 'model info' is selected, (need to delete unused)

When I select on ‘Window’, it does not respond when I select ‘model info’ it no longer reveals the related box, I need to delete unused items as the program is slowing dramatically.
I’m using SU pro 2016

hello, the dialog might appear off screen

see this thread Preferences Dialog won't open / Explaining the magic key combination

if you have multiple screens, unplugging the additional ones and re-lauching sketchup may fix the issue too (you can then plug the other screens again)

1 Like

Grazie Millë
That worked a charm
Much appreciated