diff --git a/wk/parameters_ZP_linear.m b/wk/parameters_ZP_linear.m
new file mode 100644
index 0000000000000000000000000000000000000000..ceebcb0cd6a7e03b2c9b905c436de2db9e28c988
--- /dev/null
+++ b/wk/parameters_ZP_linear.m
@@ -0,0 +1,44 @@
+clear all;
+addpath(genpath('../matlab')) % ... add
+default_plots_options
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% Set Up parameters
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%% PHYSICAL PARAMETERS
+NU      = 1e-2;   % Collision frequency
+TAU     = 1.0;    % e/i temperature ratio
+ETAB    = 0.5;    % Magnetic gradient
+ETAN    = 1.0;    % Density gradient
+ETAT    = 0.0;    % Temperature gradient
+MU      = 1e-4;   % Hyper diffusivity coefficient
+LAMBDAD = 0.0; 
+NOISE0  = 5.0e-5;
+%% GRID PARAMETERS
+N       = 64;     % Frequency gridpoints (Nkr = N/2)
+L       = 100;     % Size of the squared frequency domain
+KREQ0   = 1;      % put kr = 0
+PMAXE   = 02;     % Highest electron Hermite polynomial degree
+JMAXE   = 01;     % Highest ''       Laguerre ''
+PMAXI   = 02;     % Highest ion      Hermite polynomial degree
+JMAXI   = 01;     % Highest ''       Laguerre ''
+KPAR    = 0.0;    % Parellel wave vector component
+%% TIME PARAMETERS 
+TMAX    = 300;  % Maximal time unit
+DT      = 1e-2;   % Time step
+SPS2D   = 1;      % Sampling per time unit for 2D arrays
+SPS5D   = 1;    % Sampling per time unit for 5D arrays
+RESTART = 0;      % To restart from last checkpoint
+JOB2LOAD= 00;
+%% OPTIONS
+SIMID   = 'ZP_';  % Name of the simulation
+NON_LIN = 1 *(1-KREQ0);   % activate non-linearity (is cancelled if KREQ0 = 1)
+CO      = -2;  % Collision operator (0 : L.Bernstein, -1 : Full Coulomb, -2 : Dougherty)
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+% unused
+KR0KH   = 0; A0KH = 0; % Background phi mode to drive Ray-Tay inst.
+NO_E    = 0;  % Remove electrons dynamic
+% DK    = 0;  % Drift kinetic model (put every kernel_n to 0 except n=0 to 1)
+
+
+setup