Index: configurations/Instructions/Instructions.conf
===================================================================
diff -u -r443d12eb212ea7409b6136bf94b97943f1bdc03a -ra25a9a65b1efcaf73591fcc8713d9dcb4c387069
--- configurations/Instructions/Instructions.conf	(.../Instructions.conf)	(revision 443d12eb212ea7409b6136bf94b97943f1bdc03a)
+++ configurations/Instructions/Instructions.conf	(.../Instructions.conf)	(revision a25a9a65b1efcaf73591fcc8713d9dcb4c387069)
@@ -12,6 +12,10 @@
 # [<Prefix '@' for advanced mode><Step Tite>^<User mode or sub step>]
 # "Title" = <Title string>
 # <Instruction step> = <image.png>
+# - OR -
+# [<Prefix '$' for HDF mode><Step Tite>]
+# "Title" = <Title string>
+# <Instruction step> = <image.png>
 # ######################################################################################################
 
 [Concentrates]
@@ -79,3 +83,16 @@
 Title = Test Primary Carbon Filter
 Test the primary carbon filter and select the result below. = Water_Sample_1.png
 
+[Blood Return Setup]
+Title = Blood Return Connection
+Clamp arterial bloodlines and disconnect. = Connect_1.png
+Connect arterial bloodline to the saline y-connector. = Connect_2.png
+Unclamp arterial bloodline and saline y-connector. = Connect_3.png
+
+[$Blood Return Setup]
+Title = Blood Return Connection
+Clamp arterial bloodlines and disconnect. = Connect_1.png
+Connect arterial bloodline to the substitution line using a sterile connector. = Connect_2.png
+Unclamp arterial bloodline and substitution line . = Connect_3.png
+
+