This tool is a "drag and drop" method of changing tops.  When in Smart Pick mode, you can CTRL+ left click any top and drag it to a new position. Importantly, this method makes immediate changes to the database without any additional dialog boxes.  Select the green button to start Smart Pick mode, and the red button to end Smart Pick mode.

Selects the top used by the "Start" and "Stop" buttons.

Starts picking the top selected on the Top Dropdown immediately to the left.  Click the left mouse button to pick the tops's depth for multiple wells.  To stop picking tops, select the right mouse button or select the "Stop" button to the right.

Stops picking tops, and provides an opportunity to save the top changes to the project database.  Selecting "Yes" will apply the changes to the database, while "No" will ignore any changes made to the tops.

Refreshes the image on the screen with the latest tops from the database.  This can be useful when multiple users are working the same tops simultaneously in the project.

Creates a new formation top in the project with the Add New Formation Top Marker tool.

Erases the depths for the top on the top selected on the Top Dropdown.   Click the left mouse button to null the tops's depth for multiple wells.  To stop erasing tops, select the right mouse button or select the "Stop" button to the right.

When a From-To pair is set, and a type log selected (Logs>Select Log Curve) this button will create a Type Log Correlation Window.

Establishes a From-To pair used in many different Cross Section Module functions.

Starts Add Fault gap tool