Brand new player - question about Swiftcast and Macros - PS4

[Taika]

Hello and welcome to FFXIV!

To answer to your question about use of Swiftcast, it can be used for various things, for example for a quick AoE heal (any healer job), AoE stoneskin (WHM), or AoE damage (WHM and AST). Also, one thing to note, since you mentioned you're coming from other MMOs and are used to playing healer role in them, is that in this game healer roles aren't limited to healing other than in very specific circumstances (and maybe when you're just learning the job or new content), so don't be afraid to do some DPS between your heals.