You would like to view/pull (aka search/filter) a set of specific cases into one view by using their case numbers (case IDs).
To have specific cases into one view (a search result) you will need to enumerate their case numbers (IDs) one by one in the search field using the "case" keyword and the "OR" search operator.
For eg: to list cases having the IDs 1, 2 and 3 you would use the following search criteria:
case:1 or case:2 or case:3
You can refine the result further using "Refine Further" option available above the search result, as described in the FogBugz Filter Feature article, or you can add to your search criteria further filtering results as described in our Ultimate Guide for Complex FogBugz Searches