Changed gain from to LFGain, menu

git-svn-id: https://subversion.xor.aps.anl.gov/synApps/areaDetector/trunk@16876 dc6c5ff5-0b8b-c028-a01f-ffb33f00fc8b

ADApp/op/adl/LightField.adl

@@ -286,7 +286,7 @@ composite {
 		height=18
 	}
 	monitor {
-		chan="$(P)$(R)Gain_RBV"
+		chan="$(P)$(R)LFGain_RBV"
 		clr=54
 		bclr=4
 	}
@@ -294,21 +294,6 @@ composite {
 	limits {
 	}
 }
-"text entry" {
-	object {
-		x=148
-		y=650
-		width=60
-		height=20
-	}
-	control {
-		chan="$(P)$(R)Gain"
-		clr=14
-		bclr=51
-	}
-	limits {
-	}
-}
 text {
 	object {
 		x=97
@@ -2582,3 +2567,16 @@ composite {
 		}
 	}
 }
+menu {
+	object {
+		x=148
+		y=650
+		width=70
+		height=20
+	}
+	control {
+		chan="$(P)$(R)LFGain"
+		clr=14
+		bclr=51
+	}
+}