There are many problems to present info panel during issue creation. Finally there is a proper way.
A special field: Message Custom Field (for edit) might be added and set as info panel. You will need to use setting of the default value. You may add something like this:
{panel:bgColor=#deebff}
Info *here*
{panel}
or something like this:
{panel:title=Wincyj info|bgColor=#FFFFCE}
no i takie *takie*
{panel}
Results:
useful link to Text rendering in JIRA