Solved : I've found an example that fits my need
Hi,
I'm sure I'm wrong, but I don't know why this doesn't work :
Code
<include url="plugins/showtext.xml" />
<textstyle name="style1" font="Arial" fontsize="18" />
<action name="test">
showtext('[b][i]my text is here[/i][/b]', style1);
</action>
Is quite simple, but I didn't use krpano for a long time.
Thanks for your help