Using accolades in scores

Hello all,

I hope I've found the right forum to bring up this question:
I have been trying to engrave some organ pieces by Reger that indicate a change of organ manual using accolades like this:
https://prnt.sc/1vugdoy
Is there a clever workaround to achieve this in MuseScore? I tried using text with "{", but the maximum font size is still not large enough to look like in the score. I also can't find an accolade symbol in the palette (like there are symbols for multiple clefs that can be inserted wherever you want in a score).