Dynamic Default Date Slicer Selection

Hi all! Have a quick question - have been racking my brains to figure out how to do this, but am falling short. I have a slicer for month in the following format on multiple pages of my report:

When the report is opened up, I would like to have the default slicer selection be today's month. I know you can do this by using Lock Aspect, but this is somewhat unfeasible in the long run as I would have to change the slicer selection for every page, every month and then update every bookmark. Users need to be able to change the filter selection for the full range of 2019. Thanks for the help!!