Create a button at the bottom of the screen to move to the top of the screen when clicking on it.

[Mark-JZ-Yeap]

I created a bookmark, "Top of page". When I moved to the top of the page, I clicked the 3 dots next to "Top of page" and click "Update".

Then, I created a button and moved to the bottom of the screen and set "Action" to "On" and set the  bookmark to "Top of page".

When I pressed ctrl and click the button, nothing happened.

Please advice.

[lbendlin]

Are you using a custom page height, different from the standard 16:9 format? That is generally not advisable.  Consider moving content to other pages so you can avoid the page scrollbar.

instead of a bookmark , you can use an action button "Page navigation"  and specify your desired page. That may also navigate to the top of the page even if you are already on that page.

[Mark-JZ-Yeap]

I am using custom page height.