This functionality is only available on some platforms and unfortunately, the IDE might not be clear about this, it just won't work. If you want to try it, right click in the debugger's breakpoints view and there is an 'add watchpoint' option.
NOTE:
This entry has been validated against the SDP version listed above. Use
caution when considering this advice for any other SDP version. For
supported releases, please reach out toQNX Technical Support if you have any questions/concerns.