https://www.siemens.com/global/en/products/automation/topic-areas/solutions-for-machine-tools/cnc4you/cnc4you-videos/ttt-gen/r-parameter.html
Learn how to use R-parameters to create multiple component variants efficiently with a single NC program in this comprehensive SINUMERIK Operate video tutorial.
user variablesprogrammingsiemensglobal
https://docs.oracle.com/en/cloud/saas/enterprise-performance-management-common/svpbc/dynamic_user_variables.html
If your administrator set up a form with at least one user variable and enabled dynamic user variables, then you can select and change user variable values...
user variablessettingdynamic