Automation Blocks - Need to automate reducing a comp by 40 handles on either side and shorten comp

I just added a new block script to the Community Library for you. 

You find it at

Comps/Batch Create/For Each Selected Clip Create New Comp And Trim.xml

You can simply select some clips in the project panel and run the tool. It creates for each clip a corresponding comp and puts the clip in that comp. In the inputs panel you can enter a number of frames which should be trimmed from the beginning and the end.

If you set these input params to trim 39 frames from the beginning and 40 from the end, I think you get what you want. (39, since you want the extra frame for the slate).

Here is the code of the block script explained:

what do you mean by "handles" and what do you mean by "reduce"?

i don't understand the situation...