Job types are basically job templates for you to use over and over again. Each job type has 4 sections:
(a) The description section allows you to include a description for a particular type of job. It can be a story to tell your clients what was done for the job, for example.
(b) The File upload section allows you to upload files to the job type. Whenever a job is created from said job type, the files will be available and accessible from the job.
(c) the Check sheet section corresponds to the Check sheet session in a job
(d) the Costs section corresponds to the Invoice section in a job