UX design for datainput control of vector attributes

UX decision needed on how to layout Inspector Panel controls for enabling datainput control of individual vector components.

Open issues:

• where to position datainput icon that the user presses when turning control on for a vector component (position.x etc)
• where/how to indicate and highlight the control status. Currently, Inspector panel highlights the entire attribute name and shows the controlling datainput name next to the attribute. Panel perhaps gets crowded if each X, Y, Z component shows the name of the controlling datainput next to it.
• Additionally we need to decide if it is allowed for datainput1 to control f.ex "position" and datainput2 to control f.ex "position.x". (For Runtime this is technically ok, but I'm not sure if we can guarantee in-order behaviour if both datainputs change within the same QML animation cycle.)

A  proposal below for case where user is controlling x and y with two different datainputs: