Yes, the MSDM (MAI Session Definition Maintenance) online facility provides the capability of displaying and changing session list data in the ACDB file. To access the MSDM facility, enter shortcut /MSDM at any user prompt from within the region.
Usage of the MSDM facility is described in Chapter 8 of the Solve:Access Session Management Administration Guide.
There is also an API that allows access to the file via a NCL procedure - MAI Session List interface, $MASD00F. The MAI Session List interface is provided to retrieve, modify and store MAI session lists and their entries. It provides a logical interface that hides the physical file format. By using this interface your code is protected from file changes that future versions of SOLVE:Access may require.
CA Solve:Access Session Management Administration Guide – Appendix F : MAI Session List Interface contains the full list of $MASD00F API calls with examples.