Doing dynamic changes in CTHRESH and getting the error message when issue the command EXPORT to save it in PARMLIB member to make this as permanent change:
GSVX071E CTHRESH is not a valid keyword for the EXPORT command
SYSVIEW 16.0 & 17.0 - z/OS supported releases -
From the RULES display (CTHRESH), the command 'EXPORT CICSTHR membername' can be issued and it will download it to the SITE.CNM4BPRM.