Hello, i am working on adding 50 or 100 challenges to my pack, some people wants a goal to work towards or they dont see a reason to go through it to the end. I was thinking how i could add them to the book, i have read the Wiki and i haven't seen a way include them in any way. I had in mind using the crafting output for a checking mark or cross-lining a

by clicking a button.
I may be asking about something impossible but i dont feel like adding a questbook mod only for the challenges when i can just make some pics to be placed in a wall with Bibliocraft painting.

Thanks.

Did you accidentally leave out part of the post? " cross-lining a [...?] by clicking a button." doesn't really compute.

If you only need the book to display the status of the challenges, and your challenges are set up to grant an advancement when they are completed, you could use advancement conditions to selectively display the checkmark. I don't know if this would work for you.

oh yes, i had placed a paragraph tag, i forgot angle brackets dont display here. I had in mind something like changing the style of the paragraph content by clicking some button next to it.
About the advancedments, its impossible to make a challenge for something like this:

-Detonate a Nuke in a Nuclear Wasteland Biome at height y=80
-Discover and mine successfully all the different types of Asteroids
-Kill a Wither inside a cage of Osirtus Blocks with a Laser
...
and so on, only a few challenges are the type of "get a stack of an item"