diff --git a/NCINDG/iocBoot/iocNCINDG-IOC-01/config.xml b/NCINDG/iocBoot/iocNCINDG-IOC-01/config.xml
index 12caacfe4..114a52864 100644
--- a/NCINDG/iocBoot/iocNCINDG-IOC-01/config.xml
+++ b/NCINDG/iocBoot/iocNCINDG-IOC-01/config.xml
@@ -20,6 +20,7 @@
 <macro name ="INDEX_6" pattern="^[0-9]$" description="Index of digitiser 6." hasDefault="NO" />
 <macro name ="INDEX_7" pattern="^[0-9]$" description="Index of digitiser 7." hasDefault="NO" />
 <macro name ="SYNCPREFIX" pattern="^.*:$" description="Prefix of instrument to sync start/stop from e.g. IN:HIFI:" hasDefault="NO" />
+<macro name ="SAVEFILES" pattern="^(YES|NO)$" description="Save on screen graphs at end" hasDefault="YES" defaultValue="NO" />
 </macros>
 <pvsets />
 </config_part>
diff --git a/NCINDG/iocBoot/iocNCINDG-IOC-01/liveview.cmd b/NCINDG/iocBoot/iocNCINDG-IOC-01/liveview.cmd
index d256ec603..69bd9cf50 100644
--- a/NCINDG/iocBoot/iocNCINDG-IOC-01/liveview.cmd
+++ b/NCINDG/iocBoot/iocNCINDG-IOC-01/liveview.cmd
@@ -5,7 +5,8 @@ NDStdArraysConfigure("AD$(DIG)$(LVDET)IM1", 3, 0, "AD$(DIG)$(LVDET)ROI1", 0, 0)
 NDStatsConfigure("AD$(DIG)$(LVDET)ST1", 3, 0, "AD$(DIG)$(LVDET)ROI1", 0, 0)
 NDTimeSeriesConfigure("AD$(DIG)$(LVDET)ST1_TS", 100, 0, "AD$(DIG)$(LVDET)ROI1", 0, 22, 0, 0, 0, 0)
 NDPvaConfigure("AD$(DIG)$(LVDET)PVA1", 3, 0, "AD$(DIG)$(LVDET)ROI1", 0, "$(MYPVPREFIX)$(IOCNAME):D$(DIG):AD$(LVDET):pva1:pvadata", 0)
-NDFileHDF5Configure("AD$(DIG)$(LVDET)FILE", 3, 0, "AD$(DIG)$(LVDET)ROI1", 0, 0, 0, 0)
+$(IFSAVEFILES=#) NDFileHDF5Configure("AD$(DIG)$(LVDET)FILE", 3, 0, "AD$(DIG)$(LVDET)ROI1", 0, 0, 0, 0)
+$(IFNOTSAVEFILES=) NDFileNullConfigure ("AD$(DIG)$(LVDET)FILE", 3, 0, "AD$(DIG)$(LVDET)ROI1", 0, 0, 0, 0)
 
 ## needs to fit in EPICS_CA_MAX_ARRAY_BYTES i.e. nx * ny * pixelsize
 ## also NELEMENTS needs to at least nx * ny
diff --git a/NCINDG/iocBoot/iocNCINDG-IOC-01/st-common.cmd b/NCINDG/iocBoot/iocNCINDG-IOC-01/st-common.cmd
index b51908440..e27f989f1 100644
--- a/NCINDG/iocBoot/iocNCINDG-IOC-01/st-common.cmd
+++ b/NCINDG/iocBoot/iocNCINDG-IOC-01/st-common.cmd
@@ -17,6 +17,8 @@ stringiftest("DIGIP5", "$(IP_ADDR_5=)", 3)
 stringiftest("DIGIP6", "$(IP_ADDR_6=)", 3)
 stringiftest("DIGIP7", "$(IP_ADDR_7=)", 3)
 
+stringiftest("SAVEFILES", "$(SAVEFILES=NO)", 5, "YES")
+
 $(IFDIGIP0) iocshLoad "${TOP}/iocBoot/iocNCINDG-IOC-01/st-dig.cmd", "DIG=0,IP_ADDR=$(IP_ADDR_0=),INDEX=$(INDEX_0=)"
 $(IFDIGIP1) iocshLoad "${TOP}/iocBoot/iocNCINDG-IOC-01/st-dig.cmd", "DIG=1,IP_ADDR=$(IP_ADDR_1=),INDEX=$(INDEX_1=)"
 $(IFDIGIP2) iocshLoad "${TOP}/iocBoot/iocNCINDG-IOC-01/st-dig.cmd", "DIG=2,IP_ADDR=$(IP_ADDR_2=),INDEX=$(INDEX_2=)"