When you encounter consecutive characters in your reading that you know to be a real word, you can add the word to your copy of Chinese Toolbox in the following way:
To see all your custom words, click 'Export custom words' on the File menu, then open ExportedCustomWords.utf8 (in your Chinese Toolbox document folder) in a text editor.
See the February 2018 updates for
← Chinese Toolbox and Toolbox Coding →
especially the new Chinese Toolbox 13.1.0.5.