Window > Preferences > BS2000 Remote IDE > Placeholder Sets.
Here is the default content of the Placeholder Sets preference page:

In the Placeholder Sets preference page you define Placeholder Sets. You can add new Placeholder Sets by clicking Add Placeholder Set, edit a selected Placeholder Sets by clicking Edit Placeholder Set, or deleting a selected Placeholder Set by clicking Delete Placeholder Set. For the sake of convenience, if a Placeholder Set is selected when Add Placeholder Set is clicked, the selected Placeholder Set is shown as initial value in the dialog box which is opened to enter the new Placeholder Set. Here a name of the Placeholder Set must be specified, which is unique within the Placeholder Sets.
The Placeholder Set is a set of Placeholders with fixed name and value. In the dialog box opened to create or edit a Placeholder Set, you can define, edit or delete placeholder by clicking Add Placeholder, Edit Placeholder, or Delete Placeholder.
In the dialog box opened to create or edit a placeholder, you must define the name and the value of the placeholder. Optionally you can add a description of the placeholder.