The page is use to repair data in engine, like when some timer are broken, to create them again
Use a Code:
Support may give you a Code. Then go to the page, give the code, and execute it.
Develop a new script:
Any script has be be saved under the GroovyMaintenance folder, in the Git Community (https://github.com/Bonitasoft-Community/page_towtruck/tree/master/GroovyMaintenance). The file name must be .groovy. Then the file name is the code to give (case sensitive). Visit https://github.com/Bonitasoft-Community/page_towtruck/tree/master/GroovyMaintenance/ReadMe