Section/category limit text

[todo]

Hi to all,
first, let me congratulate you for the wonderful job you are doing. I'm in the process of learning how to use Elxis and I have a problem: for the frontpage we have the possibility to display only a part of the post ("Limit text: 200" ... in my case), now I need to apply the same for sections and categories, lets say I want Limit Text:300 for sections and Limit Text:400 for categories.
I just can't figure out where and what to change

Any help would be much appreciated, thank you.