There are a bit related feature requests, but still are different ZBXNEXT-2788, ZBXNEXT-481.

An ugly workaround:

Current workaround:
Created global Macros, for example: {$ZZ_WHITELIST_WARNING_1} - {$ZZ_WHITELIST_WARNING_58}
Each macro is infact a RegExp string, for example: 'Active Directory (Certificate|Domain|Federation) Services'
Limited the use of global macros as much as possible by putting as many white listed services in per macro (see example above)
Added to the filter of the Windows services discovery rule:
Type of calculation: or (A or B or C or D or E or F or G or H or I or J or K or L or M or N or O or P or Q or R or S or T or U or V or W or X or Y or Z or AA or AB or AC or AD or AE or AF or AG or AH or AI or AJ or AK or AL or AM or AN or AO or AP or AQ or AR or AS or AT or AU or AV or AW or AX or AY or AZ or BA or BB or BC or BD or BE or BF)
Labels for each RegExp macro, for example: {#SERVICEDISPLAY} matches {$ZZ_WHITELIST_WARNING_1}
This approach gives the benefit of changing the whitelist (by changing the global macros) without having to update all host that have this template
This is an ugly workaround and not easy to maintain. Hence this feature request to allow an OR in a global regular expression.