Fixed Amount Stop Loss, No Percentage

Expected Behavior:
I want to risk $50 this trade, I go to Fixed Amount Stop Loss and type in $50. Position size adjusts accordingly.

Current Behavior:
I want to risk $50. I go to Fixed Amount Stop Loss and type in $50. Nothing happens.

I then have to type 100% and click somewhere else for position size to adjust. This extra step is unnecessary.

If I wanted to risk 50% of $50 I would just type $25, I don't need to do percentage calculating for this.