How to click a text input field under a given field text label?

[zmike]

I want to point the curser to a text input field to enter a variable data.
But this text input field is hard to capture via either classic or xpath.
It does not seem to have fixed name.
But this text field has a fixed text phrase just above this text field called "Order Value"
How to let zennoposter to click the text field under the phrase "Order Value"?
Thanks in advance!

 

[lokiys]

It is a very individual situation. It requires to actually see the webpage and this field.