Manipulating pieces in different time signatures
It is relatively easy to manipulate pieces or fragments of pieces in different time signatures if they are related by powers of two in Musescore.
Thus a piece in 4/4 can be modified to produce a piece in 2/4 or vice versa - using copy and paste and the doubling or halving of the pasted result.
This also works for 3/4 to 6/8 and some other time signatures.
Of course sometimes one bar may become two, or vice versa - but the overall principle is useful.
It is possible to manually convert pieces written in 12/8 to 4/4 by replacing dotted crotchets (quarter notes) with crotchets (quarter notes) and groups of three quavers by triplets. Effectively the note lengths are scaled by 2/3, and then placed in the notation using a different time signature. There might also be a corresonding need for a tempo adjustment.
Is there any way that this can be done automatically in Musescore? It's perhaps not a big deal, but could be helpful sometimes.