Index: simulation/sim/04_passive_tr/project.lht
===================================================================
--- simulation/sim/04_passive_tr/project.lht	(revision 8851)
+++ simulation/sim/04_passive_tr/project.lht	(revision 8852)
@@ -24,8 +24,6 @@
        li:output {
         {ha:time plot all} {
          ha:presentation {
-          axis_x = lin
-          axis_y = lin
           type = plot
           li:props {
            in
Index: simulation/sim/10_bjt_amp_tr/project.lht
===================================================================
--- simulation/sim/10_bjt_amp_tr/project.lht	(revision 8851)
+++ simulation/sim/10_bjt_amp_tr/project.lht	(revision 8852)
@@ -28,8 +28,6 @@
        li:output {
         ha:transition {
          ha:presentation {
-          axis_x = lin
-          axis_y = lin
           type = plot
           li:props {
            out
Index: simulation/sim/12_bjt_amp_ac/project.lht
===================================================================
--- simulation/sim/12_bjt_amp_ac/project.lht	(revision 8851)
+++ simulation/sim/12_bjt_amp_ac/project.lht	(revision 8852)
@@ -27,8 +27,6 @@
        li:output {
         ha:decibel {
          ha:presentation {
-          axis_x = lin
-          axis_y = lin
           type = plot
           li:props {
            vdb(out)
@@ -43,8 +41,6 @@
         }
         ha:phase {
          ha:presentation {
-          axis_x = lin
-          axis_y = lin
           type = plot
           li:props {
            cph(out)
Index: simulation/sim/16_opamp_dc/project.lht
===================================================================
--- simulation/sim/16_opamp_dc/project.lht	(revision 8851)
+++ simulation/sim/16_opamp_dc/project.lht	(revision 8852)
@@ -35,8 +35,6 @@
        li:output {
         {ha:dc sweep} {
          ha:presentation {
-          axis_x = lin
-          axis_y = lin
           type = plot
           li:props {
            in
Index: simulation/sim/18_opamp_ac/project.lht
===================================================================
--- simulation/sim/18_opamp_ac/project.lht	(revision 8851)
+++ simulation/sim/18_opamp_ac/project.lht	(revision 8852)
@@ -35,8 +35,6 @@
        li:output {
         {ha:outout decibel} {
          ha:presentation {
-          axis_x = lin
-          axis_y = lin
           type = plot
           li:props {
            vdb(out)
@@ -51,8 +49,6 @@
         }
         ha:phase {
          ha:presentation {
-          axis_x = lin
-          axis_y = lin
           type = plot
           li:props {
            cph(out)