Tagging or flagging multiple X1 results for action

I use X1 ® Desktop Search Version 5.5.2
Frequently I search for relevant emails or docs to answer a question in my business. Often I see a list containing several significant items.
I would like to be able to TAG each such item to create a sublist of relevant items needing attention - perhaps a system of coloured flags (bit like Outlook) could work?
Frequently I search for relevant emails or docs to answer a question in my business. Often I see a list containing several significant items.
I would like to be able to TAG each such item to create a sublist of relevant items needing attention - perhaps a system of coloured flags (bit like Outlook) could work?