Hi, I have an Umbraco V4 website and my customer wants to be able to search the backend based on whether a node has a certain document property. Currently nodes have a property called "Issue" which is actually selected using an Ultimate picker datatype that shows the childs of a node as follows:

Issues
   - 7601
   - 7602
   - 7603

So basically the customer wants to be able to search all the nodes that have the Issue 7602 property. I have download the Content Maintenance package source code and I was hoping to modify this in some way so that one of the dropdowns that I could search using would be Issue and could be populated from the list above. Is this possible and if so how difficult would it be to do? Are there any other alternatives to this method that would allow the Umbraco using to search for certain nodes depending on what properties they have or even by the date they were created? Hope this makes sense, please let me know if anyone would like me to explain further. Cheers