Nesting [wlt-if]

/*
    Below is an example (not the best one) but an example none the less!
*/

[wt-if field="is-logged-in"]

  Great you're logged in...
  
  [wt-if-1 field="height"]
    ... and you have added a height.  
     [wt-if-2 field="weight" operator="not-exists"]
        ... or a weight entry. 
     [/wt-if-2]
     [wt-if-2 field="weight,height" operator="not-exists"]
        We need these fields to calculate your BMI!
     [else-2]
        Great, we can calculate your BMI!
        [wt-recent-bmi]
        [wt-if-3 field="bmr"]
              While we're here, here is your BMR! [wt-bmr]
        [/wt-if-3]
     [/wt-if-2]
  [else-1]
    ... and you haven't added your height.
  [/wt-if-1]

[else]
  You need to log in!
[/wt-if]