Hi all, 
I am having issues with being able to filter by certain fields. 
I have a few thousand projects mapped with varied attributes and I am trying to filter by the project number in bulk. 
Essentially, out of 4000 projects I only want to view around 600 and the project number is listed in the attributes and I can apply a filter to the data but i would need to do this one by one. I am trying to find a way I can apply this in bulk and easily in Portal. 
I have been able to successfully filter the projects in ArcMap using SQL but I don't have the option in Portal. 
I came across custom expressions and I was wondering if there would be a way to use this in a similar manner? I have not had much success with the custom expressions with also keeping the existing Polygon for the projects. 
Thanks in advance.