Timeline/button

Ok, so I have this presentation and it’s built into scenes with 6 buttons to navigate throughout the scenes. Now what i want to do it click on a button, have it go to a scene play through then at the end of the scene stop and the button reappear, but then when you click one of those buttons I would like for it to continue on that time line and then go to and play the scene that i assign it to.

I did a quick small version to show you. Any help I would GREATLY appreciate it. Or if you are as lost as me

Thanks!