Is there a way to change the text justification of BOM tables?

Currently, everything is centered.  I would like everything left indented by 1.  I do this in Excel all the time, but can't quite seem to figure out how to do it in an embedded SW BOM table in a drawing.

I have managed to change a single cell justification to left, center, or right, but that's about it.

I would also like to bold the column headers.

Ideally, I would change existing BOMs and then set up my document template to format them this way every time.

Thanks for any help, as always.