Conditional Formatting for Multiple Cells from one column to the next

Morning,

I am trying to colour cells based on the corresponding column. In the example attached, if B1 has the value of 1 then I want it to colour A1 green, if it has a value of 3 colour it red, and if not value then leave it blank.

Using conditional formatting I have been:
- selecting cell A1
- selecting the wizard
- selecting 'Use a formula to determine which cells to format'
- I am having to use the formula =$B$1=1
- then selecting the colour green

Is there any way I can select multiple cells, rather than doing this for each cell?

Thanks for any help you can give.

Administrative Note:

We would very much like to help you with your query, however the thread title does not really convey what your request is about.

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