====== Save project specific view interactions for next run (Ratcheting) ======
When a view is run the user often interacts with the view and it would be good to save those answers for subsequent runs.  In addition, these answers will be specific to a project and you only want to reuse those answers for the project at hand.

If the user wants to read or write to disk they will specify a project under which their data will be saved

The view defines 4 ways for the user of a view to specify their settings for this run of the view:
  * "manual entry without save (default)"
  * "manual entry with save for next time"
  * "import data from previous run"
  * "import data from previous run AND allow change"

===== Background Info =====

  * [[howtos:toolcoding:projectNamesDefn|Defining a project for the project list]]
  * [[https://www.whatiftechnologies.com/doku.php?id=how_tos#view_writing|Data storing in viewData]] - see the bullet about viewData and it's location
  * [[howtos:toolcoding:viewInformants|view specific informants]]
  * [[howtos:toolcoding:getProjectExportPath|Getting project specific paths]]

===== Building the Rachet view =====

Check out the example in /models/caness/V5/views/sim/residential/resThermCondEnrCode_v2.t