diff --git a/Template/MyCustomDevice_platformio.ini b/Template/MyCustomDevice_platformio.ini
index 4a9e44f..668be98 100644
--- a/Template/MyCustomDevice_platformio.ini
+++ b/Template/MyCustomDevice_platformio.ini
@@ -14,7 +14,7 @@ build_flags =
 build_src_filter = 
 	+<../Template>													; build files for your custom device, replace "Template" by your folder name
 lib_deps =															; You can add additional libraries if required
-custom_core_firmware_version = 2.5.1								; define the version from the core firmware files your build should base on
+custom_core_firmware_version = 3.0.0								; define the version from the core firmware files your build should base on
 custom_source_folder = Template										; path to your Custom Device Sources, replace "Template" by your folder name
 custom_community_project = 	YourProject								; Folder name inside zip file, also ZIP file name if "custom_zip_filename" is not changed
 custom_zip_filename = ${env_template.custom_community_project}		; Name of the zip-file, overwrite it to define an different zip-file name
@@ -54,6 +54,7 @@ build_flags =
 	-I./src/_Boards/Atmel/Board_ProMicro							; Include the required board definition. If you need your own definition, adapt this to your path (e.g. -I./CustomDevices/_template/_Boards)
 	'-DMOBIFLIGHT_TYPE="Mobiflight Template Micro"'					; this must match with "MobiFlightType" within the .json file
 	'-DMOBIFLIGHT_NAME="Mobiflight Template"' 						; this will show up as Name in the settings dialog unless it gets change from there
+	-DMF_STEPPER_SUPPORT=0											; disable stepper support, could also be another device. Not all devices will fit into flash for ProMicro
 build_src_filter = 
 	${env.build_src_filter}											; don't change this one!
 	${env_template.build_src_filter}								; don't change this one!
@@ -150,3 +151,4 @@ custom_core_firmware_version = ${env_template.custom_core_firmware_version}	; do
 custom_community_project = ${env_template.custom_community_project}			; don't change this one!
 custom_source_folder = ${env_template.custom_source_folder}					; don't change this one!
 custom_zip_filename = ${env_template.custom_zip_filename}			; don't change this one!
+