Yes it is.
This is how you set it up
Constant
Whatever the value is in post data. So if it was Data=9DF4FE1207494401AB72A2E17C2E2954E000003-
then make the constant Data=
&
Use & as operator to join the Constant and Cookie
Cookie
In the blank spot, put in the name of the cookie. So if you wanted the value of pstk in pstk=9DF4FE1207494401AB72A2E17C2E2954E000003
make the Cookie pstk
Save and set it as Post Action Post Data