218 votes41 comments · Adobe InDesign: Feature Requests » Document/Pages · Flag idea as inappropriate… · Admin →
An error occurred while saving the commentRayn Gilmore commented
This works for me (tried it on CC 2015 & 2019). Press Command-Alt (on a Mac), then click and drag the page in the palette to the right until you see the '+' icon, THEN drag it to the left until you see the vertical line. Let go of the mouse button, and the copy should be under the current page.