How do I bold parts separately in a composite font? But do not bold the original parts

How do I bold parts separately in a composite font? But do not bold the original parts
@Erwin Denissen ,Please help me, thank you!

In the glyph overview, select the glyph members that you wish to make bold, then run the bold transformation.

Your method doesn’t suit me. I just want to bold the specified member in the composite glyph. But the original member should not be bold.

Then just select the glyph members that you wish to be bolder, e.g. the accents.
Bold Transformation.png

You still don’t understand what I mean. I have made a picture. Would you please have a look? Thank you so much!

If uni5B97 is composed from uni793A and uni580, select uni580 and bold that.