I couldn't find the answer to either question below in the Podio API documentation (perhaps I just overlooked it at https://developers.podio.com/doc), and from looking through the old Podio developer's forum (https://help.podio.com/hc/en-us/community/topics/200069178-Podio-API-Developer-Forum) it seems that the answer to 1 below is "That's not possible", but before I resort to resolving both questions in my code, I'd like some clarification on both issues.
The following JSON category query filter does
"if org-type = 3 _**or**_ org-type = 4":
{"filters":{"org-type":[3,4]}}
But is it possible do
"if org-type = 3 _**and**_ org-type = 4"?
And the following does "if org-type = 3 and loc = 7":
{"filters":{"org-type":[3],"loc":[7]}}
But is it possible to do
"if org-type = 3 _**or**_ loc = 7"?