As seen below when a user pauses SLA clocks, 2 drop dows are offered, but without a possibility to add more values to this out of the box funtionality:

In addition possibility to define additional triggers for auto-resume are needed, for example on change of a a field value, or based on inbound email processed and added on case level (for example when customer is emailed to provide more info, and once a reply comes back, the SLA clock resumes automatically, with an automatic answer as YES to the following question:

Finally the system should automatically refresh the case tab, when ServiceMax Console is utilized, in the related ServiceMax tab (not browser tab), when a change in SLA clocks took place for user to see, for example when SLA clocks first start counting on case (when WO is created), or after resume action with Yes answered, to show the extended target values on case level.
Would be nice to offer on FSA (ServiceMax Go) also the clocks visibility and funtionality, not just the target values.