The delivered TPX logmode tables are: TPXLGMD2, TPXLGMD3, TPXLGMD4, TPXLGMD5, and TPXLGMOD.
Sample source is found in library CB0VSRC with corresponding assembled and linked version in CB0VLOAD.
Yes, TPX will need to be recycled after you have reloaded the tables in VTAM.
If you need to alter a logmode table: