Categorical Date Slicers

Hi all, would appreciate any help available for this! This is inspired by this post (https://community.fabric.microsoft.com/t5/Desktop/Date-Categorical-Slicer/m-p/2028914) But it is slightly different in a sense that I still wish to have 2 additional date slicers (one for main and one for comparison).

As you can see, I have 2 date slicers that control the 2 lines on the line chart. However, I would also love to have an event selection slicer that allows me to filter my date for the first date table (ie the one on the left) to the corresponding start date of the event, on top of the date slicers. Hence, I would still require the date slicers since the 'default' mode of date selection would still be the slicers, and the events slicer is an add on. (i am ok with the default being the event slicer, and there being a 'custom' selection that allows me to choose the dates from BOTH date slicer).

Would you have any ideas how should I go about doing this?