...
Select the the desired device categories. At the moment this is the only way to filter the device in this step. This is kind of stupid, but at least there is some way to group them. Proceed to select individual devices within the selected categories.
Check the boxes corresponding the devices you wish to copy the price table to. In the device listing, reddish background indicates an existing price table, while devices on gray background don't have price tables yet.
When done, scroll to the bottom of the page and click "Copy to selected devices" to save your changes.
...