Centering measure numbers under multimeasure rests

[motet]

I would like to center measure numbers under multimeasure rests. The measure region feature works fine, except for the situation where the end of the multimeasure rest must be adjusted at a clef change. If I adjust the endpoint for the clef, the multimeasure rest count moves to be centered over the rest symbol, but the measure number range stays centered between the barlines.

What to do in this situation? I guess I could adjust the left side of the rest by the same amount. Or I could move the measure number range left, but there doesn't seem to be a way to type in an offset, and dragging with the mouse is imprecise.

[Shinohara 1027]

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[Shinohara 1027]

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[motet]

I think I'll adjust the left-hand side also. It looks best when the horizontal bar, measure count, and measure range are all centered, I think. Thanks for the thoughts.