when linking to another issue is it possible to view only issues of a specific user selected project and select from those?

[Charalambos Hadjichristodoulou]

I am in a situation where upon opening up an issue within a certain project i wish to link to another issue of a different project. I get back all issues which are open within my JIRA instance. How do I limit to view only the ones relevant to my project of choice?

[Nic Brough -Adaptavist-]

You can't.  The whole point of links is to allow linking to any issue you can see, so arbitrary limiting rules simply aren't there.