Allows hiding of the Controller tab (controller tab still defaults to visible).

Fixes #3984

lib/Slic3r/GUI.pm

@@ -89,6 +89,7 @@ our $Settings = {
         threads => $Slic3r::Config::Options->{threads}{default},
         color_toolpaths_by => 'role',
         tabbed_preset_editors => 1,
+        show_host => 0,
     },
 };
 

lib/Slic3r/GUI/MainFrame.pm

@@ -115,7 +115,8 @@ sub _init_tabpanel {
     });
     
     $panel->AddPage($self->{plater} = Slic3r::GUI::Plater->new($panel), "Plater");
-    $panel->AddPage($self->{controller} = Slic3r::GUI::Controller->new($panel), "Controller");
+    $panel->AddPage($self->{controller} = Slic3r::GUI::Controller->new($panel), "Controller")
+        if ($Slic3r::GUI::Settings->{_}{show_host});
 }
 
 sub _init_menubar {

lib/Slic3r/GUI/Preferences.pm

@@ -71,6 +71,13 @@ sub new {
         tooltip     => 'When opening a profile editor, it will be shown in a dialog or in a tab according to this option.',
         default     => $Slic3r::GUI::Settings->{_}{tabbed_preset_editors},
     ));
+    $optgroup->append_single_option_line(Slic3r::GUI::OptionsGroup::Option->new(
+        opt_id      => 'show_host',
+        type        => 'bool',
+        label       => 'Show Controller Tab (requires restart)',
+        tooltip     => 'Shows/Hides the Controller Tab. Requires a restart of Slic3r.',
+        default     => $Slic3r::GUI::Settings->{_}{show_host},
+    ));
     
     my $sizer = Wx::BoxSizer->new(wxVERTICAL);
     $sizer->Add($optgroup->sizer, 0, wxEXPAND | wxBOTTOM | wxLEFT | wxRIGHT, 10);