Load Shared Parameter into Files command set has the following four sub commands:
Load into RVT Files
Load into RFA Files
Load into RTE Files
Load into RFT Files
Load into RFA Files is to load the chosen shared parameters from the connected shared parameter file with the current model or the associated shared parameter file with the Revit session, as Family Parameters, into Revit family (.RFA) files either selected individually or residing in some folders.
In terms of how the tool should deal with those .RFA files in the chosen folders, e.g. if to skip those Revit auto-backup files, it can be configured in the Shared Parameter Settings command and dialog.
The main UI of Load Shared Parameters into RFA Files is pretty similar to those Load Shared Parameters into Models ones.
The top pane is the same as the Shared Parameter Viewer UI that was introduced a few times before; the bottom pane is the Family Parameter Candidates list. The left most column is to select parameters either shared or project, as can be noticed. Some other nice features about the parameter lists include each column can be resized and sorted at will, and when the Window is resized the data grids will be automatically adjusted nicely along.
The arrows on the right side are either to add the chosen Shared Parameters to the Parameter Candidates or to remove the chosen candidates from the bottom grid. The OK and Cancel buttons on the right bottom corner are straightforward. OK is to create Family Parameters from the candidates and Cancel to do nothing but close the dialog.
The Group Under is a combo box to choose which UI group that the family parameter candidate is supposed to be under. The AsInstance column indicates if the family parameter is of type kind or instance; the AsReporting indicates if the family parameter is a reporting one, which cell will be enabled only when it makes sense; the Value is the default value for the family parameter; the Formula is the formula for the family parameter; the Lock column indicates if the family parameter is supposed to be locked or not; the Description field is the tooltip for the family parameter.
The Load to Where button on the middle of the lower half right side bar can be used to double check which family files and folders need to be addressed.
If any issues with the Family Parameter Candidates such as Group Under not specified, the Issues number will be reported onto the status bar after the OK button is pressed and the wrong candidates will be highlighted in red. By the way, it is not necessary to select all candidates to create family parameters from, but it is in case some are not needed anymore, e.g. being about to be removed from the list through clicking the UP arrow.
If the Family Parameter Candidates are good, the tool will try to create family parameters accordingly and report back if everything is fine or anything wrong, either big or small such as some family parameters cannot be locked or some formula are not proper for some parameters.
All of these can be exercised in the trail edition of Revit Parameter Organizer.