While writing a new If block, I hit tab key and a menu dropdown box appeared!

What menu list is this? As I wasn’t looking for a menu, I needed to indent the player2 var! See next picture.
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  • How long am I going to be a new user? What makes a new user a plebe when it comes to populating a question w/relavent data/info.?!?

It is the ‘Code completer widget’ described in the documentation here.

" The code completer widget can be activated by pressing Tab in a non-empty line of a code cell.
To cycle completion candidates use: - Up/Down arrow keys or Tab/Shift + Tab for cycling one item at a time - Page Up/Page Down keys for jumping over multiple items at once
To accept the active completion candidate pressing Enter, or click on it with your mouse/pointer.
By default the completions will include the symbols (“tokens”) from the current editor (“context”), and any suggestions returned by the active kernel in response to complete_request message. You may be able to improve the relevance of completion suggestions by adjusting the configuration of the kernel of your choice."