Applying a weighted close to RSI, Stochastic and Williams%R

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I want to have the following indicators on MT4:

Williams%R 21 Levels -20, -50, -80. Weighted close (HLCC/4)
Stochastic %K 3, %D 5 Slowing 14 apply to Weighted close (HLCC/4)
RSI Period 14 applied to weighted close (HLCC/4)

Is it possible and if so how. I'd like to do it using the inbuilt MT4 indicators rather than having to write a new one.