@jdcarroll88
A check box for placing “Grace note before barline” in grace note properties would be welcome.
In the meantime I would suggest the tuplet approach as a workaround (the same technique is used in Sibelius).
But in your case I can achieve it only for 7 x 32nd grace notes.
You’ll have to play with Tuplets and Display Quantize settings to get the results you want.
See the video for details