Help with JQL

[Joe Smith]

I am having an issue creating a JQL Filter that properly shows my issues in a scrum board

I have two projects, Project A and Project B

I want the filter to show 4 subtask issue types from Project A, and ALL issue types from Project B. 

I know there is a way to use parenthesis to get this to work, but I keep getting an error that my parenthesis are not correct. Can someone please help me write this query?

[Jack Brickey]

the question is a bit confusing but try this...

(project = project A AND issuetype in (subtask1, subtask2, subtask3, subtask4)) OR (project = project B)

if this doesn't get you where you want to be please share the filter you have in place.