Create an If statement comparing a custom field MS Word

I'm trying to create an if statement (in MS Word) that looks at a custom field.

The custom field is DocProperty Client_ABV

I want it to print a line of text if client_abv matches a certain value else be completely blank (or delete the empty line if possible)

I believe it needs to look something like this:

{IF DocProperty.Client_ABV="Test" "Print this line if Test",""}

I've very little experience with this function in Word but I have some with conditional programming.

Can anyone shed any light. I've been googling it for the last 45 minutes and have had little success with the example pages I've found.