Allow long in/out-coming arrow to go out of the group/alt/... block [Sequence diagram]

Question

Hello PlantUML,

To continue with those requests:

• https://forum.plantuml.net/8734/sequence-diagrams-size-of-alt-blocks
• https://forum.plantuml.net/9652/sequence-diagram-padding-for-outgoing-allows
• https://forum.plantuml.net/3443/rendering-problem-incoming-outgoing-messages-sequence-diagrams
• https://forum.plantuml.net/10637/alt-opt-etc-do-not-extend-to-encompass-ref-box

→ Could you force long in/out-coming arrow to go out of the group/alt/... block, and not only on the border...?
or reduce the group/alt blocks?

Additionally of the other (from other requests cited), here is another example, for more readability (See 'Goto INIT' on red):

Thanks for your works,
Regards,
Th.