Step-by-step guide

This can be done using Macro's inline string capability, which allows arbitrary text to be inserted into the macro and stored in a string variable. Example:

# Metview Macro

dummy_string = string inline
%manual

ecflow manual
DESCRIPTION

######################################
# Example ecFlow task
# This is the manual page for the task
#######################################

%end
end inline

print('Start of Macro execution...')