Feature request: collect elements from different boards at another board by tag

I have different boards: one for work project 1, one for work project 2, one for personal life. Every board has list of things I should do today/this week. I’d like to tag some things from these lists, so they will automatically show at another board, which I use for daily scheduling only. Thus I can see everything I should do this day from different spheres of my life.
I tried to use tags for this, but it is not as comfortable, as it could be.