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It can happen that a given function can be used with various data types so it is documented on multiple web pages Let us take the values() function as an example. The first thing to note is that in the function list the tooltip describes all the variants of this function:
Then in the function's help page at the top we can chose from a list which variant documentation we want to see
Integrated Colour Editor (F2)
The colour editor can be activated by pressing F2 or clicking on the 
icon in the toolbar:
