Filter Weirdness

Sometimes when I switch filters it asks to clear the old filters and sometimes it doesn't. I'd prefer if it just cleared the old filters always. But at the least it should always ask instead of merging the old filters with the newly selected filter.
I saved a filter with a * at the beginning of the name and now I can't use it but I can't delete it either.
There should be a Clear button in the filters window like at the top of the stats window (Settings/Filters/Clear/Refresh).
I saved a filter with a * at the beginning of the name and now I can't use it but I can't delete it either.
There should be a Clear button in the filters window like at the top of the stats window (Settings/Filters/Clear/Refresh).