diff --git a/aegisub/automation/autoload/select-overlaps.lua b/aegisub/automation/autoload/select-overlaps.lua
new file mode 100644
index 000000000..c328aaee4
--- /dev/null
+++ b/aegisub/automation/autoload/select-overlaps.lua
@@ -0,0 +1,46 @@
+-- Copyright (c) 2010, Thomas Goyne <plorkyeran@aegisub.org>
+--
+-- Permission to use, copy, modify, and distribute this software for any
+-- purpose with or without fee is hereby granted, provided that the above
+-- copyright notice and this permission notice appear in all copies.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+-- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+-- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+-- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+-- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+-- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+-- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+--
+-- $Id$
+
+script_name = "Select overlaps"
+script_description = "Select lines which begin while another non-comment line is active"
+script_author = "Thomas Goyne"
+script_version = "1"
+
+function select_overlaps(subs)
+    -- filter subtitles lines to just dialogue lines and sort them by time
+    local dialogue = {}
+    for i = 1,#subs do
+        local line = subs[i]
+        if line.class == "dialogue" then
+            line.i = i - 1
+            table.insert(dialogue, line)
+        end
+    end
+    table.sort(dialogue, function(a,b) return a.start_time < b.start_time end)
+
+    local end_time = 0
+    local overlaps = {}
+    for i,line in ipairs(dialogue) do
+        if line.start_time >= end_time then
+            end_time = line.end_time
+        else
+            table.insert(overlaps, line.i)
+        end
+    end
+    return overlaps
+end
+
+aegisub.register_macro(script_name, script_description, select_overlaps)
diff --git a/aegisub/automation/autoload/strip-tags.lua b/aegisub/automation/autoload/strip-tags.lua
new file mode 100644
index 000000000..594953221
--- /dev/null
+++ b/aegisub/automation/autoload/strip-tags.lua
@@ -0,0 +1,32 @@
+-- Copyright (c) 2010, Thomas Goyne <plorkyeran@aegisub.org>
+--
+-- Permission to use, copy, modify, and distribute this software for any
+-- purpose with or without fee is hereby granted, provided that the above
+-- copyright notice and this permission notice appear in all copies.
+--
+-- THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+-- WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+-- MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+-- ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+-- WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+-- ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+-- OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+--
+-- $Id$
+
+script_name = "Strip tags"
+script_description = "Remove all override tags from selected lines"
+script_author = "Thomas Goyne"
+script_version = "1"
+
+function strip_tags(subs, sel)
+    for _, i in ipairs(sel) do
+        local line = subs[i]
+        line.text = line.text:gsub("{[^}]+}", "")
+        subs[i] = line
+    end
+    aegisub.set_undo_point("Strip tags")
+end
+
+aegisub.register_macro(script_name, script_description, strip_tags)
+