In the musescore, we had the double return measure bar finalizing a musical piece and starting another one as in the final annex. 1 Now placing separately as directed, the return bar is after the time signature and not before as in the previous musescore, see final attachment 2. In musescore 3 I can not put the bar of measure before the time signature, it is very strange in this way, it differs from other music writing software.
I'm sorry if I still do not know the musescore 3 feature to do this
Roberto Dal Medico