Complement/Reverse
Complement or Reverse DNA sequences without doing both
Requires Geneious 6.0+
Install the plugin by downloading the gplugin file and dragging it in to Geneious or use the plugin manager in Geneious (under Tools - Plugins in the menu).
Once installed, run the operations by selecting one or more nucleotide sequences and choosing Sequence - Reverse Only or Complement Only from the menu.