The property sheet is a useful tool, but I think now it only allows manual input by players
It does not allow changing properties directly through a Dynamic Property, for example, and if a Dynamic Property changes them, it is not reflected.
Maybe you could make the apply button be bound to a keystroke? Or better, that each line could have its keystroke and the Apply button would launch them all.
A second request on the same line:
Could it be made to reflect changes in properties due to other traits as well? That would mean that in addition to being able to change the properties, it would also be possible to see its current real state, not just the last one entered manually.