access all features in a group

Hello,

I'm trying to create a script to project all sheet edges from a group of surfaces that are in a feature group onto a surface.

I'm strolling to access the features inside a group.

I know the group name as a string and the destination surface name as a string. Now I'm trying to loop through all the features inside the group, and if the feature is a sheet project its edges.

I was trying to use:

.AskSetFromName to access the group and them use
.IsFeatureASetMember or .AskAllMembersOfSet to loop through the group and project the sheet edges if the feature is a sheet.

But I can't use any of the group functions, i always get a errors.

hope you can help me
cheers
kico