app desinger drop down

hello guys,

im struggeling with the dropdownmenues in an app.

i have 2 drop down menus with:

18-30

31-45

46-60

61+

0-17

and:

Lila

magenta

Orange

Gruen

Enthaltung

on the push of abutton i want to check wether the option 0-17 is selected and if so output an error (msgbox).

need those options to be displayed to the user but when selected using an numeric number 1 - 5 to be used to use them kinda as coordinates to navigate a 4x5 matrix. i want to add 1 to the number in the coordinates of the matrix. (only 5x4 since if selected 0-17 nothing but the error is supposed to happen)

Cheers guys!

Edit:

How can i generate a random matrix (5x4) in which the sum of all elements equals a given number?

Answer 1

[Aaron Petersen]

found it already.