Hey, I don't know how to search the element:
Because the 'Docunment' is variational, e.g. 0;_2, 0;_3, 0;_1, I don't know when it will be variational, so that i can't search the element.
ANYONE have the experience? Thank you!

Because the 'Docunment' is variational, e.g. 0;_2, 0;_3, 0;_1, I don't know when it will be variational, so that i can't search the element.
ANYONE have the experience? Thank you!