It takes too many clicks to assign a venture, need "repeat previous venture" button

[Niwashi]

1. click summoning bell
2. Click retainer name
...

You left out the "Summon Retainer" click in between those two. (Unless you've never unlocked the aesthetician. Once he can be summoned as well, there's one step for whether to summon a retainer or the aesthetician, and then another for which retainer to summon. I still don't understand why it doesn't just show everyone we can summon in that first list.)

But anyway, yes, I agree that your Repeat Venture option would be a nice convenience.