[Swissmedia]

You can press and hold (or click and hold) and then drag a button to move it.

I will be adding more options in the future for the appearance of buttons. Adding an option to place the button on the same part of every page in the song (based on the relative positioning of the button compared to the page width and height) is doable, but I'm not sure exactly where I'd want to place that option. I could place it on the dialog when initially creating the button I suppose, and it would just add a copy of the same button to every page. I do not currently plan on adding an option to create a button once and have that one button show up on every page, because that would require significant changes in my code.

Mike

Well, in my opinion, you choose the link when you create the song for the first time. I don't use any other smart buttons. 
So it's complicated to imagine an identical link on each song, and not very useful.

The idea is to have an option "Place the same on all pages of the song", it would be great and it would avoid confusion or errors due to manual duplications, and sometimes the Youtube link changes, so easier to have an automatic replication on the other pages. The colors would be very useful, because now it's gray and the songs are usually in black and white... No need for many colors for me. The luxury would be to have an icon for the links...