Revit :: Managing Width Of Text Parameter Entries

If there is a way of managing the width (and start position) of a text parameter?

I have created a 'Title Sheet' stamp for entering the proposed materials that are intended for a building project.  This is used for a UK Planning Application where the required materials intended for use in a project need to be declared.  Having created a suitable stamp where the information infills are created from Project Information parameters I need occasionally to widen the column width to accommodate the amount of text so that it does not need to drop down to another line and be lost behind the text on the next line?
 
See the attached image below: 
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On the second column 'Proposed' the word 'panels' which comes after 'weatherboard' is lost behind the lower line. If I can lock each label to the vertical lines to their left (they are all center) formatted) and extend their width to the right, along with the column vertical dividing line, then the labels will fit.  Similarly I could increase the depth of each row.