Working with the fields panel
When not in use, the fields panel is hidden, to avoid cluttering editing space in the template editor. To activate this panel, click the fields option on the top, left-hand side of the template editor:
If you wish to keep the fields panel open, click the 'pin' icon in the top right-hand corner of the fields panel. This is a toggle option, click it once to 'pin' the panel to the editor and click it again to hide it again.
Within the fields panel, fields are organized into related groups, namely:
To insert a field, simply double click the required entry in the panel. The field is inserted and the fields panel closes automatically, so you can start working with the field in the editor.