Use of *linemesh_preparenodeslist1 1 2

Hi

I want to use the tcl command *linemesh_preparenodeslist1 on a set of nodes that are currently contained in a list "curr_weld".

"curr_weld" contains the list of numbers "143 142 176 177 178 179 180 181 182 183 184 412 413 414 415 416 417 229 228 227 226 225 224 223 222 221 147 146 145 144"

What command do I need to use to get the nodes in curr_weld onto the mark 1 so that the *linemesh_preparenodeslist1 will work?

I've tried *createmark nodes 1 $curr_weld, but this just seems to assign the first number to the mark.

Thanks