Autofill form in word in combination with VBA

[nouki]

Hi !

I guess I need some help with my word document.

I would like to make a document for work. The format will be used so people can subscribe themself for a photoshoot.

There are many options, so they must tick one or more subjects they like.

My problem:
Every photoshoot has another time, example: a babyshoot takes about 3 houres and a marriage shoot takes about 1.5 houres.

I would like to have a textbox where stands automatically witch time they have.
Example: when they activate babyshoot, there must stand 3 houres. But when they take a babyshoot and a marriage shoot, there must stand 4.5 houres.

I have tried the 'if ... then' formule, but that didn't work, and I have no idea what's the right code for VBA.

I have attached the file, because it's a complex document

Hope you guys can help me !