The 'Internal' group of attributes is hidden from the user and is only encountered if working with the XML source of a saved TBX file. This group cannot be accessed via the UI, such as via the documents Inspector/System tab. Do note attempt to export or use action script on these items. The group is comprised of following known attributes:
- $Alias. Unsigned type (only used by this attribute). The Alias is used by aliases only and holds $ID of the alias' original note.
- $EntryScript. String type. Purpose undocumented. At some point the app may have allowed action code to be run at doc open/close and the attribute may be for this (legacy support?).
- $ExitScript. String type. Purpose undocumented. See the previous bullet.
- $WindowPlace. [Unknown] type. Purpose undocumented, but may be used to seed values for individual window position/state stored in the TBX.
The purpose of the other attributes is unknown.