Adding Number to beginning of each filename

[randywild1]

Hello. Newbie here. At beginning of each filename, I want to add 1 as prefix, and increment each time.
In Numbering section, I have Mode Insert, at 1, start 1, Incr. 1, Pad 0, Sep blank, break=0, but it is placing the number as the 2nd character in each filename.

Final result should be:
1filename
2filename

Thanks.

[randywild1]

Figured it out. Used the Add group.

How can I delete my original post and this reply?