Spell with spell radius and color before deploying to increase accuracy

As when deploying spell in particular area we do not the area it will affect if it would be possible to have a visual support that will provide a facility where we can see the area which will get affected with color of spell . for eg if i am going to deploy healing spell then yellow circle should be there before deployment. There is two main advantages of this scheme 1) User will know the area where it will affect increase efficiency when used. 2)It will decrease the gross error of deploying the multiple spells accidentally as spell is selected so it will appear with colored circle. As the spell falls accidentally doesn't cost elexar it costs time to create and in emergency have to boost the spell factory. Thank for reading my post opinions are welcome in advance.

Excellent idea. Although, it does take out some of the skill requiered in using spells and that may ruin the game if you get perfect spell drops everytime.