so that + present simple or + will?

[jesus]

Hello.

I can't understand when we have to use The present simple and when Will in a purpose or result clause (So that) if the main clause refers to the present.

Thanks.

[Rusty]

Hello.

I can't understand when we have to use The present simple and when Will in a purpose or result clause (So that) if the main clause refers to the present.

Thanks.
I'm sorry, Jesus, I don't understand your question. Can you give us an example?