Cannot see Protractor mod in game at all??? Help requested!

[pseudochicken]

Briefly: First time I've tried installing a mod. Extracted the latest Protractor mod file to the GAMEDATA folder, but I do not see the Mod during game play at all. Tried doing it the old way, still nothing. What do I do? Does it require me to activate it in game or something? Any help would be greatly appreciated.

Thank you in advance.

[GavinZac]

I have it installed, but I've never used it. However, it adds a protractor item to the science tab - add that?

[leax256]

My protractor is not in game data, it is in the directory. you need to add the part to the ship first, it is in science.

[pseudochicken]

I knew it was going to be something boneheaded on my end! I did not know it required a physical part attached to the vessel. Got it working! Thanks!