I'd make an simple example for you.

The key function is generated by the network output with the same address as the network input.
At first the network input is queried with 1 signal and then the bit of this V-address is subsequently reset (with the LOW Block on the network output).
As a result, the bit is only for 1 cycle on high signal.

Hello M111,

you're welcome....

Update the theme:

The solution presented here is only required for the old LWE versions V1.0.0 and V1.0.1.
This is not necessary for V1.1.0 and the current version V1.1.1, as these versions have the "Push button" element.