about change dimstyle

[blueshake]

hi,all

I have issue here.

I have two dimstyle named "style1" and "style2".

 

then I mark a dimension which select "style1",and I add prefix and tolerance to the dimension from property panel.when I change the dimension from "style1" to "style2",the message prefix and tolerance I added just gone,what is the story here.How can I avoid this?thanks.

here is the picture.

[ReMark]

My guess is that Style 2 was not set up to use a prefix or a tolerance. I could be wrong.