Question: How leave out entries in an array

If you define an array with entries from 1..10 and you want to plot these entries but with three different plots, e.g. entry 6 and 7, and again entry 10 shall be plotted separately: plot entries 1,2,3,4,5,8,9 in the same way, but entries 6,7 in a second and entry 10 in a third way. For example with different colors.

Is there a command for this?

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