This system has Loop Gain (L(s)) = G(s)*H(s) = 𝐾/((𝑠+1)(𝑠+2)(𝑠+10)) with Settling Time (Ts) = 1 s; Overshoot (OS) = 10%; Error Steady State (Ess) = 0;
You can modify the system specification by recalculate and make some changes on Matlab source code. Thank you, have fun!