Hello Christian,

 

Allthough the store:read function returns an empty sequense I found that it still triggers  the error: 'expressions must all be updating ....', when used within an updating function.

 

I guess this error is unnecesary. 

The workaround is quite easy by using a void function[1]

 

[1] store:read( $name) => void()

 

mvgr.

Rob Stapper