* Example

#+BEGIN: propview :id "december" :conds ((string= spendtype "food")) :cols (ITEM amount)
| "ITEM"                           | "amount" |
|----------------------------------+----------|
| "Grocery Store [2008-12-01 Mon]" |    56.77 |
| "Restaurant [2008-12-08 Mon]"    |    30.67 |
|----------------------------------+----------|
|                                  |          |
#+END:

#+BEGIN: propview :cols (ITEM (+ 400 amount)) :scope tree :match "example"
| "ITEM"                                                                          | "(+ 400 amount)" |
|---------------------------------------------------------------------------------+------------------|
| "December Spending                                                   :example:" |                0 |
| "Week One"                                                                      |                0 |
| "Grocery Store [2008-12-01 Mon]"                                                |           456.77 |
| "Athletic club [2008-12-02 Tue]"                                                |            475.0 |
| "Week Two "                                                                     |                0 |
| "Restaurant [2008-12-08 Mon]"                                                   |           430.67 |
|---------------------------------------------------------------------------------+------------------|
|                                                                                 |                  |
#+END:

** December Spending						       :example:
   :PROPERTIES:
   :ID:       december
   :END:

*** Week One
**** Grocery Store [2008-12-01 Mon]
     :PROPERTIES:
     :amount: 56.77
     :spendtype: food
     :END:
**** Athletic club [2008-12-02 Tue]
     :PROPERTIES:
     :amount: 75.00
     :spendtype: health
     :END:
*** Week Two 
**** Restaurant [2008-12-08 Mon]
     :PROPERTIES:
     :amount: 30.67
     :spendtype: food
     :END: