hello! is it possible to create variables similar to %PCName or %PcClass etc. which can be used in books or scrolls? It is used in CharGen Scroll at the beginning of the game, where we have written our name, class and birthsign as far as I remember. I would like to create something like &PCFaction or %PCAlignment and more and more but is there any possibility? Thank you in advance

Text defines are hard coded, but there are other functions you could use with scripts;

^PCName
^PCClass
^PCRace
^PCRank
^NextPCRank

Not sure if these could be used in a book or scroll though.

IIRC in book/scrolls you can use both ^ and % prefix, but I'm not entirely sure.
Anyway, if you need one of the textual functions (see http://www.scribd.com/doc/7007668/Morrowind-Scripting-for-Dummies-9 page 105) you are limited to standard ; if you need a numeric value you have more freedom, you should be able to assign the value to a global variable and show it in the scroll with ^globalvarname (be sure to not change the variable when the scroll is already open)

Yeah, I know about global variables, albeit I need to use non-numeric values. I will try with in-game variables, maybe I will get around with this trouble. Thank you anyway

you want to use "string" variables.

MWSE allows this. not sure if it allows the usage in a way that you want, but it is possible to store string information.