Expected and Surprise trajectory

[fbrazdik]

I have the simple case
d = databank.forModel(m, 1:20);
d.Er(2) = 0.01 + 0.01*1i;
s = simulate( m, d, 1:20);

I believe that the resulting real number is the in simulation results for endogenous variables is anticipated and surprise trajectory together.

What is the recommended approach to recover anticipated trajectory? Is it possible?
The resulting database keeps shocks in complex format.

Further, lets consider the case shocks + plan :

1. anticipated shock - only the anticipated component - shocks are coming from anticipated layer
2. surprise plan - only the surprise component - add the surprise layer - compute the complex part via plan

Is this possible?