Isn't true bi-amping running separate wires to each of the post pairs on the speaker?

My Martin Logan SL3s (I think) have four posts (two for the ESL panel) and two for the cone in the base.

I would assume what is being mentioned here is to use one of the plates that connect the two pairs of posts so that the output going to the first pair of posts gets also sent to the second?

I would assume that not only does it depend on which post pair gets the raw power from the amp to affect speaker performance but also how much it gets?