I googled and I didn’t find a solution. 1) Is it possible to change the scheduler-calendar page? 2) to delete it? Even when I uninstall Event Calendar / Scheduler, the scheduler-calendar page remains. I saw a similar post with this problem but it was a conflict between two plugins. I don’t think that is the case. I checked in the database and the scheduler-calendar page is not there.
Scheduler creates a page during first plugin initialization. After that page can be edited or deleted by default WP logic. Scheduler ( 2.0+ ) will not recreate page, and will not block its deletion
Is it possible to change the scheduler-calendar page?
Yep, you can create new page and place inside its content the next marker
[[scheduler_plugin]]
Even when I uninstall Event Calendar / Scheduler, the scheduler-calendar page remains
Plugin can’t delete page during uninstall. But you can do it manually through wp-admin|pages menu.