Yes I had to change in object picker as you said.
Now I have another problem, unrelated to previous one, but I am going to use the same topic for it.
I wanted to change the content of package in forms,
so I could copy the document title to workflow property in start task(always only one document in workflow).
I have managed to copy the title by having a button in forms that does that with javascript(so user can have a choice where to copy the
documen title or not). But I have a problem now. The property where I copied title to is mandatory(the only mandatory property) and
even though the property has value now(text data type, I use ordinary text field), I can't start workflow, the button is grayed out. If I make a change in
input field the I can start the workflow. Also if I type something in the input field, and then copy by clicking on button, I can also start workflow
Any suggestion?
Thanks for answers
EDIT: I have solved the problem.
I had to use the mandatory validator on the field for event that I trigered with javascript