Hi,

I was wondering if there is a way to only display a text if the player had chosen a certain answer a few pages before.
Or do I have to put the decision whether the text will displayed on the same page as the text that will/ will not be displayed?

Confusing stuff.

You need a record, an 'indicator/flag/state', for determining what happens, which are VARIABLES, and in quest are known as Attributes (global/"permanent" VARIABLES --- so long as the Object containing/holding them exists/still exists of course).

for an example of Attributes and the 'if' Script in action:

some earlier Page:

test.score = 76 // or whatever Value that you have getting determined for it

some later Page:

if (test.score >= 90) {
  test.grade = "A"
} else if (test.score >= 80) {
  test.grade = "B"
} else if (test.score >= 70) {
  test.grade = "C"
} else if (test.score >= 60) {
  test.grade = "D"
} else {
  test.grade = "F"
}

// result: test.grade = "C"

// -------------------------------------

some earlier Page:

test.score = 43 // let's say that inside of 76 like above, you've got 43 determined as the Value instead

some later Page:

if (test.score >= 90) {
  test.grade = "A"
} else if (test.score >= 80) {
  test.grade = "B"
} else if (test.score >= 70) {
  test.grade = "C"
} else if (test.score >= 60) {
  test.grade = "D"
} else {
  test.grade = "F"
}

// result: test.grade = "F"

so, to do scripting:

'WHATEVER' Page Object -> 'Page' Tab -> Page Type: [SCRIPT] or [SCRIPT+TEXT] -> (see below)

Attribute scripting (creation/adding/setting, including of their initial Values, and/or manipulation/changing/altering/re-setting of their Values):

add new script -> 'variables' section/category -> 'set a variable or attribute' Script -> (see below)

set variable NAME_OF_OBJECT.NAME_OF_ATTRIBUTE = [EXPRESSION] VALUE_OR_EXPRESSION

now, unlike the Text Adventure, the Game Book, only has two Objects for holding your own (custom) Attributes:

1. the 'player' Player Object
2. the 'game' Game Settings Object

so, for examples:

set variable player.strength = [EXPRESSION] 100
set variable player.alias = [EXPRESSION] "HK"

set variable game.state = [EXPRESSION] 0
set variable game.hard_mode = [EXPRESSION] false

however, you can still create the effect of other Objects:

set variable game.orc_1_strength = [EXPRESSION] 100
set variable game.orc_1_life = [EXPRESSION] 500
set variable game.orc_2_strength = [EXPRESSION] 40
set variable game.orc_2_life = [EXPRESSION] 200

you can use 'player' Player Object too, but it doesn't make logical sense (this doesn't matter at all for the computer, it'll work fine, but it's a bit jarring for a human to read/think-about), lol:

set variable player.orc_1_strength = [EXPRESSION] 500

and for the 'if' Scripting:

add new script -> 'Scripts' section/category -> 'if' Script -> (see below)

if [EXPRESSION] NAME_OF_OBJECT.NAME_OF_ATTRIBUTE // if (TRUE), for Boolean Attributes only
or
if [EXPRESSION] NAME_OF_OBJECT.NAME_OF_ATTRIBUTE OPERATOR VALUE_OR_EXPRESSION

and, there's also Negation ('not'):

if [EXPRESSION] not NAME_OF_OBJECT.NAME_OF_ATTRIBUTE // if (not TRUE), for Boolean Attributes only
or
if [EXPRESSION] not NAME_OF_OBJECT.NAME_OF_ATTRIBUTE OPERATOR VALUE_OR_EXPRESSION
or
if [EXPRESSION] NAME_OF_OBJECT.NAME_OF_ATTRIBUTE <> VALUE_OR_EXPRESSION