How to combine ScriptRunner filters to have Epics span projects & retrieve linked issues

[Yuki Reid]

I'm using ScriptRunner for Jira Cloud.  I'm trying to display all issues that are linked to epics (or not) from a specific project, plus display any epics from external projects that have issues linked from the specific project to those external epics on the epics panel on my boards. 

So far, I have two ScriptRunner filters and I'd like to combine them into one.  Can this be done? 

I use a Jql filter that references those 2 ScriptRunner filters for my board.   I'm trying to reduce the maintenance overhead of having multiple scripts per Jql filter. 

The two ScriptRunner Filters:
1. Epics linked to [Project Name] issues:  issueFunction in epicsOf("project = [Project Name]")
2. [Project Name] issues linked to Epics:  issueFunction in issuesInEpics("filter = '1. Epics linked to [Project Name] issues'") and project = [Project Name]

And the Jql board filter query: 
filter = "1. Epics linked to [Project Name] issues" OR filter = "2. [Project Name] issues linked to Epics" OR project = [Project Name] AND "Epic Link" is EMPTY ORDER BY Rank ASC

This works, but I'm hoping to have a 1:1 relationship (and not 2:1) between the ScriptRunner filter and the board filter query.

[Yuki Reid]

Actually, I figured out how to eliminate the Jql board filter by enhancing my 2nd script and using it as my board filter query.  However, would still like to know if there's a way to combine the two scripts.  Then there's only one thing to manage.  :D