You can generate abbreviation group list for Marvin JS with the help of the following form. Just fill the form and push the Add button.
By repeating these steps, you can append further and further abbreviation group to the templates object.
Finally, you can copy the textual result (from the textbox) in a file that you can refer later in Marvin JS.
In the Structure field, an MRV source is expected that contains only one compound, an abbreviated S-group.
The Name field specifies the label of the menu item in the Abbreviated group dialog. If you do not specify it, its value will be the name of the abbreviation (specified in the MRV file).