Get download mb in ssh usermanager v7

with an example :

:put [/queue/simple/ get ([find where name=Locals]->0) bytes]

i’ll get result : (total upload, download in simple queue)
84294044/51247925

now the problem in user manager is when i tried to get the same thing on that with this code:

:put [/user-manager/user get ([find where name=user1]->0) value-name="Total Download"]

the error will rise. the details and error are in the image jpg attachment.
(there is no problem to get other row’s name value like caller-id as you can see in image)

can anyone help how to get “Total Download” row’s value in usermanager v7?
Userman7.JPG