Highlight each dimension, right-click and go to properties. You can set the number of decimal places on the first tab, or you can go to the second tab and add [.#] after the &D, where # is the number of decimal places - I haven't tried the second option but it should work.
Not for each individual dimension - you can set a global number of decimal places (the settings are
default_dec_places for non-angular dimensions &
default_ang_dec_places for angular dims).
This is also from the help files:-
<H3 =Topic-Text>To Set the Decimal Places for Existing Dimensions</H3>
Select the dimension or note with numeric text. Press CTRL or use region selection for multiple selections.
You can set the decimal places and trailing zeros in either of the following ways:
Right-click on the selected dimensions and click Properties or click Edit > Properties. The Dimension Properties dialog box opens.</LI>
On the Properties tab, under Format, click Decimal and then type a value in the Number of decimal places box.
Click Format > Decimal Places. You are prompted to type a number of decimal places. </LI>[/list]
Type a value and press ENTER. Any dimensions selected, created or shown display with the designated number of decimal places and trailing zeros.
<H3>To Set the Decimal Places Prior to Displaying Dimensions</H3>
Click Format > Decimal Places. You are prompted to type a number of decimal places.
Type a value and press ENTER. Any dimensions created or shown display with the designated number of decimal places and trailing zeros. </LI>
you can also use for note example put typ in a dim. with out entering the property box highlight and type TYP , note good ideal to create pull down menus with these make it so you just click on typ instead of type. you can use this methode to put () areound dim. and even creation of notes for threaded, c'bore, and c'sink notes. if you would like anymore examples or mapkeys of these kinds post your email address and I will send a file to you.