PC version: How to hold spells while casting?

I’ve tried the PC version recently because the game lags a lot on my phone. When I cast AoE spells (ex. Demoralize) on my phone, I can hold it and move to see the AoE and the skill only gets cast when I release the button. On PC, I don’t see the AoE and the spell gets cast immediatly when I press the key, wheter I’m holding it or not. Does anybody know if there’s a setting that allows PC version to work like the mobile version?