Adding Lines And Conditional Formatting With Macros

I have only recently started playing around with macros, and am slowly getting into them. I do however still struggle a bit to ‘read’ them. Having played with formulas for years I can generally translate a string of formula text into English, like ‘if this cell value is greater than that cell value, then do this, if it is not then if it is equal to that cell value, do that, if not return 0’. Babbling like a child basically.

With visual basic I have managed to record some handy macros and then tweak them a little manually but I am still struggling to follow it going through it step by step reading it like a formula. So I hope you won’t mind me asking some very stupid questions. I mean well; I’m just a bit slow.

At present I am trying to do two different things on two different sheets, and I was wondering if perhaps one of you could nudge me in the right direction.

1:
I am trying to insert a blank row above every row that has a certain word in column B.

So basically ‘find value “Example” in column B, and when you find it, insert an entirely blank row directly above it’.

2:
Is a bit more challenging. I want to change the colour of a cell if the value in the cell corresponds with the value of another cell in the same column.

For example, I have a long list of surnames in column A. When I add ‘McNeil’ at the bottom, I would like to be able to run a macro that checks if the name McNeil appears anywhere else in column A, and if it does, that it changes the colour of the cell.

Preferably both of the cells that say McNeil, but one would do very nicely indeed.

If that is possible, I wonder if it is possible to do the same with the first name in column B, but only if there was a match for the surname in column A on the same row. So, if McNeil does not appear in column A, don’t bother, but if it does, does the corresponding first name appear in column B?

If both of that is possible, the next step would obviously be if McNeil appears in column A (say twice, once in A123 and once in A678), do cells B123 and B678 match as well?