Save a filter context to a measure

I would like to save a filter context at a specific moment, when a certain event occurs, for example when clicking on a button. In this way, you could make a comparison of the information with the unfiltered data, those selected at the moment, and those selected at a particular time. I'm looking to have a function similar to ALLSELECTED, where being inside CALCULATE, it brings me the selected data, but I should be able to work with the filtered data at a particular time.