Drawing / graphical tweaks

I've found a few times that certain minor adjustments in MuseScore are overly difficult or impossible. My suggestion is to add a few drawing features that would enable easier workarounds for deviant notation.

A few examples:

Sometimes I want to use 'semidots' (augmentation dots with holes in the middle) and a few variants. They're obscure enough to not warrant inclusion in the program, but simple enough in concept that they should be possible to create. Ideally, there would be a way to make a white circle and place it over the augmentation dot, then copy it to other augmentation dots as needed.

If there were an option to input time signatures (and other similar things) as if they were non-notational images, then it would be possible to use a time-signature-above-staff style for music without constant time signatures: create a new staff over each existing staff, then place time signature images (that don't affect the note-spacing) in the new staff.

I've been trying to use uncommon chord symbols and encountered a few problems. These could be resolved by changing the chord-input functionality to interpret any possibly valid input. For the chord "C ♯4" (which could not be inputted normally due to the space), I tried creating 6 "C" chords, filling them in different colours, then overlapping them to determine the back-to-front order. The next step was to convert the furthest behind to a black "C♯4", the next 4 "C"s would be set to white and occupy the same position, slightly off-set to completely cover up the "C" in the "C♯4", and then place the remaining "C" to the left of the now-lone "♯4". This didn't work because the back-to-front order changes. The option to permanently define an object's back-to-front (Z?) position would solve this.

For creating bizarre scores like George Crumb's Black Angels, MuseScore could be very useful. In this case, I would isolate detached parts of the score and create separate MuseScore files for each of them. For example, in cases where the staves merge together, I would use various tweaks and workarounds that are already possible, then some simple drawing tools to draw lines with the same width as staff lines from one bar line's top to another bar line's top in a different staff. The results could be combined in various other specialist drawing programs - I use KolourPaint for this kind of thing frequently.

I'm generally good at inventing workarounds for things like this, but sometimes it seems like a clean workaround within MuseScore is unnecessarily out of reach.

Thanks,
Tom