[Andreas]

Adding Phrase Groups has to be done manually as there is no GUI for it.
1) Locate the maximum phrasetypeid in table phrasetype that is < 1000
2) Insert a new record into this table that has phrasetypeid=this value+1
3) Add a new colume phrasegroup_fieldname to table language
4) Rebuild languages
Then you can add Phrases to youre Phrasgegroup

Grouping Templates is done with a Plugin on Hook template_groups

PHP Code:

$only['prefix'] = 'Prefix';