Rename file/folder name

i would like to create button to remplace "_" by space in selected files/folders ?

Try this command:

rename PATTERN="_" TO=" " FINDREP

or copy/paste this if you prefer:

[DOpus.ButtonInfo]
Name=_ to SPACE
Icon=84,9999999
Flags=6,0,0
Color=0,a0a0a0
Func1=rename PATTERN="_" TO=" " FINDREP

excelent !
thanks