Can we get a portal for daily scrolls that you interact with and if you have a summon scroll of that boss in your inventory you can exchange the scroll and the boss will summon, much like in the Main Quest line.  The boss summon scrolls are tedius when you have to open your inventory every time, attempt to use the scroll, realize that you are 3 inches to the right of the exact spot and now must reposition then try and use the scroll again.

Also remove the "awakened" piece of a summon scroll, instead allow for various exchange levels, you can exhange 1 piece for a base boss to summon, 3 for the awakened version, and 15 for a nightmare version that suggests a party of 5 270+ that drops UP to Tri versions from that same boss IE Goblin chief can drop up to TRI Giath helm or in the case of Puturum, Manshaum, and Ronaros can drop up to DUO Cresent ring, Narc earring, or Ronaros rings respectively.  

I like this idea, but I will add something like "group" version of all of this (like event altar of blood)

where every party member give scroll (or X scrolls as you suggest) and summon more powerfull version of boss