Cannot move sections in MuseScore

I have a score that has a lot of time signature changes and tempo changes. But, i built a new section at the end to copy and paste into its place when ready.

This doesn't seem to work. It won't paste because tuples would cross measures if only the notes and not the time signature changes are copied. When I paste in the notes, other things, like tempo changes do not copy.

I am gathering that MuseScore developers never contemplated that anyone would ever need to rearrange a score. My peers are chastizing me for using free software when "real" software is also available.

This is a very serious limitation. In other respects, I like MuseScore better, but fact that copy and paste only works with notes and not sections as a whole makes the whole thing seem rinky-dink.

Note: I have used MuseScore a long time, and this is the first time I've tried to do it. So, I won't really stop using MuseScore, but it is as shocking as if Word could not move a table or Excel would not let you interchange columns.