Keys for Reactor water

[heartscool]

I have created a wave effect with reactor water (by dropping an object in

 

it) and created the rest of the animation according to the necessary timing.

For some reason, I need to insert some more animation before the wave effect

 

starts, so now I need to move all animation forward about 300 frames but

 

there are no keys for the reactor water object.

There's no range identifier in Dope Sheet either.

 

I wonder if there is away to change the start frame of reactor water object.