Allow to insert ints and other simple types. Also allow inserting of same base type as the container.

Also simplify it a bit.

scripts/gui/gm-editor.lua

@@ -212,21 +212,25 @@ end
 function GmEditorUi:insertNew(typename)
     local tp=typename
     if typename == nil then
-        dialog.showInputPrompt("Class type","Input class type:",COLOR_WHITE,"",self:callback("insertNew"))
+        dialog.showInputPrompt("Class type","Input class type or leave empty for auto and '*' for new ptr type auto:",COLOR_WHITE,"",self:callback("insertNew"))
         return
     end
+
+    local trg=self:currentTarget()
+    if trg.target and trg.target._kind and trg.target._kind=="container" then
+        if tp == "" then
+            trg.target:resize(#trg.target+1)
+        elseif tp== "*" then
+            trg.target:insert("#",{new=true})
+        else
             local ntype=df[tp]
             if ntype== nil then
-        dialog.showMessage("Error!","Type '"..tp.." not found",COLOR_LIGHTRED)
+                dialog.showMessage("Error!","Type '"..tp.." not found",COLOR_RED)
                 return
             end
-
+            trg.target:insert("#",{new=ntype})
-    local trg=self:currentTarget()
+        end
-    if trg.target and trg.target._kind and trg.target._kind=="container" then
+        self:updateTarget(true,true)
-        local thing=ntype:new()
-        dfhack.call_with_finalizer(1,false,df.delete,thing,function (tscreen,target,to_insert)
-            target:insert("#",to_insert); tscreen:updateTarget(true,true);end,self,trg.target,thing)
-
     end
 end
 function GmEditorUi:deleteSelected(key)