I found it My policies on the FortiManager were Policy based.When I
changed them to Profile based, the menus "sections" and "policy blocks"
appeared.I never saw that in the doc but I'm glad I can make it working
now.I will keep Profile based policies...
Thanks for your answer, but this will only be seen on the Fortigate GUI,
isn't it ?I would like sequence grouping in my FortiManager to ease the
rule managing.