Selecting several parts at the same time (multiselect)

You can select several parts of sequence by holding down the Ctrl button while making selections. Holding down the Shift button lets you extend or reduce an existing selection to the position you clicked.

To select a part of a sequence covered by an annotation:

        right-click the annotation | Select annotation

   or  double-click the annotation

To select a fragment between two restriction sites that are shown on the sequence:

        double-click the sequence between the two restriction sites

(Read more about how to display restriction restriction sites.)