Question New Trigger Requests

So I'm rather new to a lot of aspects of building. Therefore, please do not hesitate to point me towards any obvious places of assistance that are already present within the TBA Mud and/or other documentation.

I am quite interested in two specific triggers, and I was hoping to get some feedback or advice for writing them.

The first is a guard mobile who stands in front of a locked door. The door can only be unlocked with a key that this mob spawns when she is whispered something. For example:
Whisper Iryli 'The Cycle balances all life and death.'
Iryli creates key
Iryli gives key to player character (%actor%?)
Iryli says 'Of course. Good day to you, (character name).'
Iryli bows.

Is this possible? Would it be something to the effect of:

Trigger Type: Act , Numeric Arg: 0, Arg list: The Cycle balances all life and death.
%load% obj (key)
%give% (key) %actor%
say Of course. Good day to you, %actor.name%.
bow %actor%

Another trigger I am interested in implementing is one that allows a shopkeeper to stay invis for about 3 seconds when a person enters the room she is in. Example:
(Player) enters empty room.
3 seconds pass
If (player) is still present:
(Shopkeeper) goes visible, but the text that is displayed is "(Shopkeeper) steps out from within a tree." She's a nymph, you see...
(Shopkeeper) giggles and waves at (player).
(Shopkeeper) says You look famished! Have a look at my fruit!
Invis after 5 minutes
If (player) leaves the room before the 3 seconds have passed, no action is taken.

Please let me know if this is possible! Thank you so much for your help

Both are possible with trigedit. If no one else tackles them I should be able to get to them in the next few days.

Your first trigger looks good. Though I'd have to test to make sure a whisper works with ACT... it should.

The 2nd could be done numerous ways. Below is my untested version:
For both make sure to create a unique alias. Otherwise you might purge a player named nymph etc. I usually recommend picking an alias and adding your zone number at the end. Like Nymph_135. Let me know if you have any problems and I can create the trigs on TBA and test them more thoroughly.

Wow, okay. That simplifies it immensely! I was wondering how I'd be able to mask the casting of invis, but not even loading the mob until it is needed makes more sense.

Thank you so much! I will definitely test it once I make my shopkeeper!