A few suggestions

1) Upgrading essences: I don't always want to upgrade the entire stack. It would be better if I could hold CNTRL+Left Click and have it cycle through the stack upgrading. Then I can stop when I would like to

2) Upgrading oils is painful. Also would benefit from CNTRL+Left Click cycling

3) Modifying Invitations for Item Quantity is a time/currency consuming pain in the ass. I burn through stacks of scours and alcs to constantly hit IQ 46, 52, 61, 43, etc................. Only to accept it when it hits 74 after forty or so attempts. How about set the minimum Item Quant to say 70 or 75 for invitations. No one wants to run those at such low Item Quantity