How can I unlock the selected channels in the Dope Sheet? I'm using the Dope Sheet. Could someone tell me if there is any way to lock and unlock many items at once, with one click?

I'm trying to select items with the Shift key. 

1 see an example:





But when I click unlock or lock, it does not affect all selected items. 

2 see an example.



Can someone tell me if this is possible, and if so, how?
Shift-select the channels on the left as you have been doing and then choose Channel> Toggle Channel Setting> Protect:



Disable Channel Setting and Enable Channel Setting also do this, disabling or enabling all the selected channels.