Adding more slots to knowledge book?

[Rhilana]

Newbie question:

I'm trying to create a knowledge book which shows 30 icons per page instead of 15 but I can't get the additional icons working. Any chance it would work and if yes, how?

(Maybe someone can also give me a tip how I can get health/power % w/ decimal to show in any window and if/how I can set the clock display to 24hour mode)

Thanks in advance