A preparation releases its spell when a condition called the trigger is met.
Clearly states the ACTING party is the preparation. It also defines the word trigger.
QUOTE
Command: The preparation is triggered by you.
Again, clearly states the preparation is the actor (in this case the passive recipient of a condition (that's what trigger is defined as above).
Coincidentally, this actually places a restriction on the condition - i.e. a command trigger can solely be triggered by the alchemist himself.
QUOTE
You must be on the physical plane (or manifest if you’re astrally
projecting), have line of sight to the preparation
(as defined for Spellcasting, p. 281), and take a Simple
Action to trigger the preparation.
projecting), have line of sight to the preparation
(as defined for Spellcasting, p. 281), and take a Simple
Action to trigger the preparation.
It NOWHERE states that said simple action is magical - or even that it must be done with the intent to set off the preparation.
It only has to fulfil the trigger condition.
QUOTE
Note that it doesn't talk anywhere about how to adjudicate multiple preparations being set off simultaneously - that's because the rules to do that don't exist.
Please show me ANYWHERE in the rules that says you can set off multiple preparations with the same command trigger.
Please show me ANYWHERE in the rules that says you can set off multiple preparations with the same command trigger.
It doesn't have to say so, because i am NOT setting off multiple preparations. The preparations (as active - or rather, passive party) are set off after a CONDITION is met.
QUOTE
Please show me ANYWHERE in the rules that says you can have multiple preparations all using the same command trigger.
It says the command trigger is a condition that must be met, nothing else.
Exceptions from the general rule must be expressely stated, and if no two preparations could have the same trigger, that would be an exception to the general rule.