Lightroom 5 missing some features (Range mask and Transformation panel) from a tutorial

Good morning all.

I am on Lightroom 5 which I bought a few years ago (more than 4 years I think). After watching tutorial on youtube to learn how to better use this software I realize that I do not have access to certain options. Especially in the graduated filter, I don't have the brush or the range mask.

The transformation panel does not exist and it is included in an onlet of the lens corrections panel.

Can you tell me how to access these options to facilitate photo editing? Thank you

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