Lenght factor in annotation styles

I want to use this option to create quote for a details.
Scale 3:1 I want to quote with a 0.3333333 of lenght factor.
Lenght factor does not work for decimal numbers. Work fine with 1-2-3-10-100 but not work with 0.3-0.2-1.2-1.5.

Could you correct this?

Thank you

Marco

Yes. Thanks for the report