This dialog is used in InfoAsset Manager to add custom levels to existing zoom/scale levels to control visibility of objects in the GeoPlan (e.g. when using themes or auto-labels).
It is displayed when:
Min / Max boxes for visible range are available from the following dialogs:
The new value typed in the main or max box appears in the New Value box.
Create New Value - Add the new value to the existing value.
Use Next Lowest Value - Pick the existing value that is the closest to the new value, but lower.
Use Next Highest Value - Pick the existing value that is the closest to the new value, but higher.
Make this the default action - only available when Use next lowest value or Use next highest value have been selected. Check to indicate that the value selection criterion selected above is to be followed from now on. This means that the New Level dialog will not be displayed anymore and that the closest existing level (highest or lowest, depending on the selection) will be used instead.