Goal setting: "Minutes per day on application x" instead of "Hours per day on tag x"

Hi, I would like to set this kind of goal:

Spend less than 25 minutes per day on application x.

But in the goal setting page, I can only do this:

Spend les than xx *hours* on *tag*

Of course, I could type in 0.4 hours as an approximation of 25 minutes, but entering minutes and not hours is more intuitive.

Second point, how do I enter an application name and not a tag name in the goal setting page?