diff --git a/doc/em/dispat1.sed b/doc/em/dispat1.sed
new file mode 100644
index 00000000..c459211c
--- /dev/null
+++ b/doc/em/dispat1.sed
@@ -0,0 +1,6 @@
+1c\
+.TS\
+r l l l l l l l l.
+s/-/\\-/g
+/DISPATCH2/,$c\
+.TE
diff --git a/doc/em/dispat2.sed b/doc/em/dispat2.sed
new file mode 100644
index 00000000..8955df58
--- /dev/null
+++ b/doc/em/dispat2.sed
@@ -0,0 +1,6 @@
+1,/DISPATCH2/c\
+.TS\
+r l l l l l l l l.
+s/-/\\-/g
+/DISPATCH3/,$c\
+.TE
diff --git a/doc/em/dispat3.sed b/doc/em/dispat3.sed
new file mode 100644
index 00000000..881881ef
--- /dev/null
+++ b/doc/em/dispat3.sed
@@ -0,0 +1,6 @@
+1,/DISPATCH3/c\
+.TS\
+r l l l l l l l l.
+s/-/\\-/g
+$a\
+.TE