CCL: TST codes

 Sent to CCL by: "javier  sacr" [jsacristan]-[]
 Hi all,
          In an old version of Discover/insigth software there were a couple of
 macros (gsdiff and gsnet) available to calculate diffusion coefficients and
 solubilities of small gases through polymers using the TST approach. I would be
 grateful if anyone can suggest me a name of a software package which can do the
 same or at least  can provide me these two macros and I would try to make them
 work in Materials Studio..
 Thanks in advance.