Bulk Synthesis?

[Kimikryo]

This is so against the ToS it hurts

Just, that it is not.

You are not doing an full automated bot:
You write a macro - a function implemented by SE themselves- which has several lines of "action wait action wait"
You assign the macro to a button
You hit the button and wait for the synth to be finished.

You can't just walk away and craft 100 three star HQs with that.

You can do a single craft.

Oh and to be able to do this without fail you need max melded equipment, every crafter as high as possible AND use food.

Just a heads up for you.
Quick synthing 9999 of item xyz while going afk isn't against the ToS neither.