Google is fine, but you really should look in the 'ISPF Services Guide' manual.
You can use TBSCAN if you know the entire or prefix value of the variable(s) you wish to position at, otherwise you must scan through the records using TKSKIP. Whether you use TBSCAN or TBSKIP, you save the position using the ROWID(name) parameter, and use TBSKIP ROW(name) to position the display afterwards. You may have to do a TBTOP before reposition, I can't remember offhand.
Alternate you can use TBSCAN or TBSKIP with the POSITION(crpname) parameter and the reposition using TBTOP + TBSKIP NUMBER('crpname'). I looked at some of my code and it looks like I prefer the latter. I seem to remember that the ROWID parameter may cause problems if you add or delete records.
You should also look up the built-in variable ZTSTOP for reposition after a user action.