diff --git a/lslopt/lsloutput.py b/lslopt/lsloutput.py
index 5e91504..095bcef 100644
--- a/lslopt/lsloutput.py
+++ b/lslopt/lsloutput.py
@@ -30,6 +30,9 @@ class outscript(object):
                     else:
                         pfx = '((key)'
                         sfx = ')'
+            if '\t' in value:
+                warning('WARNING: A string contains a tab. Tabs are expanded to four'
+                        ' spaces by the viewer when copy-pasting the code.')
             return pfx + '"' + value.encode('utf8').replace('\\','\\\\') \
                 .replace('"','\\"').replace('\n','\\n') + '"' + sfx
         if tvalue == int:
@@ -59,6 +62,7 @@ class outscript(object):
                     # This should never happen (Python should always return a point or exponent)
                     return s + '.' # pragma: no cover
                 exp = ''
+            # TODO: Move this to a separate function to fix the above.
             while s[-1] != '.' and lslfuncs.F32(float(s[:-1]+exp)) == value:
                 s = s[:-1]
             # TODO: Refine.
diff --git a/main.py b/main.py
index 6848469..643b780 100644
--- a/main.py
+++ b/main.py
@@ -33,6 +33,11 @@ Options (* means not implemented):
                        directives like: # 123 "filename".
   optimize             Runs the optimizer.
   optsigns             Optimize signs and float as int.
+  * foldtabs           Tabs can't be copy-pasted, so they aren't optimized by
+                       default. But with support from the viewer, they can be
+                       folded too and make it to the uploaded source. This
+                       option overrides that check, enabling optimization of
+                       strings with tabs.
   * allowcescapes      Enables use of \r, \b, \xNN, \NNN, etc.
   * enableswitch       Enables Firestorm-compatible switch statements
                        (not recommended)