In the course behavior settings, there is the option for the Page Completion Display Method where you can set how the completion progress bar percentage for all Page menu items are calculated.
There is a setting allowing you to set this on all individual pages but I dont know where on the actual pages you can specify what is to be used and what isn’t.
Yes! Evolve has content locking. Make sure Content Locking is turned on in Extensions, and set your unlock message in the settings.
Then on the page after the one you want the message to appear on, go into the Page settings and select Content Locking in the menu. Turn on the locking and select how you want it to be unlocked. Leave the Disable notification option turned off.