+1Base supports multiple software projects. After selecting which project to work on, +1Base graphically displays the calling structure of the program including any recursive routines. You can change the model, traverse the calling structure, and edit or view a module's source code, documentation, and test files.

When compiling, +1Base creates and runs the project's Makefile; fully integrating archive libraries and compile options. You can print cross reference tables, calling structure charts, individual files, or print only those files that were added or changed since the last "Make Print" command was run. You can also add your own set of commands to the environment and set a number of options. +1Base supports five programming models: Project, Tools, Objects, Interrupts, and Additional, and two documentation models: Reports and Miscellaneous.