Modal / Non-Modal Properties Panel

The Modal /  Non-Modal Properties Panel Option can be set in the preferences as follows.

Checking Double Click Runs Interactive Properties will disable the Modal Properties Panel.

Unchecking Double Click Runs Interactive Properties will enable the Modal Properties Panel.

Known Issues: 

While the Interactive Panel is faster and more convenient to use it can be an accident waiting to happen because double clicks followed by key presses will modify the Default Property in the Panel.

Examples:

Double Click on a Component and you may accidently end up changing the Designator.

Double Click on a Via and you may accidently end up changing the Diameter.

Double Click on a Track and you may accidently end up changing the Width.

Interactive Panel Pros:

For quickly changing the Width of Selected Tracks the Interactive Panel is convenient.

For quickly changing the Diameter of Selected Vias the Interactive Panel is convenient.

Interactive Panel Cons:

Accidental changes are easy to make.

That's It !