Hi martinbeaumont
To have the extra field tab, you need to copy the file:
/templates/ja_ego/etc/form/com_modules.module.xml
and past into the associated path in T4 Blank template:
/templates/t4_bs5_blank/etc/form/ (you may need to create this folder if it doesn't exist now).
About the translation for language constants in JA ACM module, you can look at language file of JA Ego template: /language/en-GB/en-GB.tpl_ja_ego.ini
Find the translation for JA ACM Feature intro module:
;JA ACM Features Intro
FEATURES_BASIC_LABEL ="General Settings"
FEATURES_BASIC_DESC =""
FEATURES_ALIGN_LABEL ="Content Alignment"
.............
and add into T4 Blank template.