Re: Document Field event trigger not working in web view or access point
I've been using a workaround which consists in using a variable that is being set according to my needs. As such, for your case, you could have a variable called vShowFirstTab which could be set to 1 if Only(%order)='first' or 0 otherwise.
Then, in the sheet propreties, you may define the Show Sheet proprety to Conditional, with $(vShowFirstTab)=1
On your Text object, you can then add an extra action in which you set the vShowFirstTab variable to the appropriate value depending on the case.