Add new field DRSEG-WEBUD via OLMRLIST

Hi experts.

When i want to  add a new filed DRSEG-WEBUD(GR posting date) in the MIRO item list via transaction OLMRLIST.

but OLMRLIST can not add new filed and also can not sort the filed sequence.

So what's method can do for it  only via user exit or have another easy solution?

please help,

thanks in advance!