renumber sequence in alignment

Hi,

I am analyzing multiple sequence alignments made in DS at the moment.

Is there maybe a way to renumber the sequences in an alignment that aren't linked to a protein structure?

That would be really helpful.

I found the "renumber sequences dialog" in the tools explorer, but it doesn't allow me to renumber a consecutive range of residues of sequences not associated with 3D structures...

Thanks in advance for your help!