InDesign Form Field Naming and Tab Order Issue When Copying Fields

I am making a bige interactive and accessible form in Indesign. I have named al my textfields 1.1, 1.2, 1.3 etc. Taborder is set.

I have several pages that include the same sort of questions. (like name, adres, phone etc).

So I thougt I just copy some field and textboxes to another page. But what happend is, in stead of auto numbering from where I was... the numbering of the textfields is automaticly set from bottom to top. So my first field is for example 1.20, the next unde that 1.19., 1.18.... 

Why would Indesign do that? And not number from top to bottom....

This is terrible because I have to set the tab order and all is totally upside down in numbering. How can I fix this? The form is about 85 pages long... so doing it al by hand is a real nightmare!

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