How can I edit common features?
Choose the Common Features List

To open the Browse Common Features dialog, click Features → Browse Common Features. Choose the desired common features list (Standard, Custom or Favorites) from the menu.
Select the Feature

Click the feature name, then click Edit... .
Edit the Feature

Edit the feature details, then click OK.
Edit the Feature Translation Options

To edit the feature translation options, click the Feature Translation Options... button.

To allow the detection of a translated feature regardless of the codons used, check the Detect either an exact protein match or an approximate DNA match check box.
When searching for "Common features" on a target sequence, SnapGene will first try to find an exact "protein match" for translated features in the Common Features database.
If "protein match" fails then SnapGene tries a DNA search using the DNA match threshold - see Detect Common Features.
Edit Multiple Common Features

To simultaneously edit multiple features' color or type, select the features in the list box, click Features → Edit [Custom/Standard] Features, make the appropriate changes then click OK.