Add slave/master client properties

README.md

@@ -203,6 +203,8 @@ Then edit this section to fit your needs.
 | **ontop**                 | Display on top of the normal layout layer      | boolean          |
 | **skip_taskbar**          | Do not add to tasklist                         | boolean          |
 | **sticky**                | Display in all tags                            | boolean          |
+| **master**                | Open a client as master (bigger)               | boolean          |
+| **slave**                 | Open a client as slave (smaller)               | boolean          |
 
  *Need default rc.lua modifications in the "client.connect_signal('focus')" section
 

init.lua

@@ -89,6 +89,10 @@ local function apply_properties(c,override,normal)
     if props.centered == true then
         awful.placement.centered(c, nil)
     end
+    --Set slave or master
+    if props.slave == true or props.master == true then
+        awful.client["set"..(props.slave and "slave" or "master")](c, true)
+    end
     --Focus new client
     if props.focus_new ~= false and (c.transient_for and not settings.block_transient_for_focus_stealing) then
         capi.client.focus = c