Hello Pat,
We have decided to implement some new functionality to satisfy the request to decompose the Asset Path into it's individual segments.
Summary: We are going to give the user the option to select a single segment to be displayed when an Asset Path field type is defined. Therefore, if you have an Asset Path with 3 segments, and you would like them split into 3 separate fields, you would create 3 field definitions and select a single segment for each. The default behavior for the Asset Path field type will be to behave as it does today, showing all segments of the path, so for users not wishing to decompose the path, nothing will change.
Details: When creating a Field Definition for an asset, if the user selects an Input Type of Asset Path, a new panel will display below the standard ADD FIELD TYPE section called "ASSET PATH". There will be one setting with a check box next to the label "List Single Segment". If the check box is clicked, a drop-down will be enabled which will list the available segments for the asset path and the user must specify one value. That is the segment which will display for that Field whether it be on the List Grid (if marked as listable) or on the Definition Tab. The check box will be defaulted to blank, making asset path work as it does today, displaying all segments of the path.
For an example of similar functionality, please see the Ownership Lookup field type with the setting "List Single Responsibility Type".