While DPSing on a healer is not mandatory realize that by not DPSing and doing nothing else but healing that you are actually putting your party at MORE risk than you would be if you were DPSing, ESPECIALLY on White Mage.

Whenever you are fighting a pack with 3+ monsters the best thing you can do to protect the party is just to flat out kill one and reduce the damage that the party takes by 33%.

Sure you can heal the damage from the 3+ monsters just fine by spamming cure on the tank, but you may actually be putting quite a bit of stress on the tank because if the tank doesn't keep hate on all 3+ monsters it turns into a ****storm very fast, and when that happens it's a lot harder to heal as now you have to keep multiple people alive.

By helping out with the DPS at the start of the fight and knocking a monster to the ground fast it makes the entire fight a lot easier as a monster pack with only 2 or less monsters is hardly a threat at all.

Simply trying to only cure the tank over and over will actually put you at some level of risk of running out of MP while helping to take down the first monster in the pack makes healing for the rest of the fight really easy.

The easiest way to assist with this is to activate cleric stance at the END of the previous fight, quickly apply Bio II, Miasma, and Bio to the primary tank target, and then cancel clerics stance and heal up from there (There's no cooldown to cancel Cleric's stance, only to activate it so it's safer to have clerics stance up and to cancel it if you need to heal than to activate it, change your mind and want to cancel it and it be on cooldown). If the tank reaches half HP at any time before you have finished applying your DoTs, just cancel clerics stance and heal the tank. This is probably the minimum that you should do on Scholar. You can certainly push your DPS quite a bit more if you want, but honestly any less I believe is putting the party at risk for most normal 3 pack of dungeon trash mobs.

In regards to target switching on PS4 hold down either L2 or R2 and then tap L1 and R1 to cycle between monsters in whatever direction you click. L1 to cycle left and R1 to cycle right. I actually find switching targets much easier with a controller than with a mouse imo.