Struggle with placing element in set with tcl sript

Hi everyone 

 

I've got some struggle using the hypermesh script to get some elements in a set for postprocessing these elements. In fact i'm abble to get the elements i want in the mark 1 but then it's impossible to get these elements in the set. The amounth of elements is quite big but i'm abble to place these elements manually in the set but it dont work with the function :

 

 *setvalue sets id=4 ids=elems={ [hm_getmark elems 1] }

 

Does someone know some specificity about this function ?

 

Thanks for the help