Is there a way to use the center glyph trick (=|) and an additional offset?

If a tab digit is very asymentric, I prefer to move it off the center. Is it possible to use an offset together with the “=|” ? e.g. =|+20 (which won’t work)

You can use the name of the glyph. For example, for the glyph named someGlyph, enter: =|someGlyph+20

Seems not to work. He adds the 20 to the width…

Remove the ==550 from the width and both =|+20 and =|six.taboldstyle+20 should work.

@FlorianPircher The combination of a width key and a =| in the RSB is special cased that it centers the shape. So it also changes the LSB.