Cannot modify link in html image field grid

In a grid, when I want to modify the link setting in a html image field I cannot acces the link setting but instead when I click on the general parameter <modify the link> I’m sent to link creation instead. Then when I access the grid, the html image button turn into a drop down menu offering me the old and new link I’ve created/modified. If I try to modify the link again, I get another link in the drop down menu when I pass the mouse over the html image in the grid. The drop down menu is showing the name of the linked application. To get rid of that Ineed to delete the html image and recreate it hoping that I wont forget anything in the link setup or I will have to do it all again. any idea ? is it a bug in scriptcase 6

Update, I’ve found that I have access to link edit if I go down the left menu to link submenu.
Via report > link: it don’t work and keep create new link for the same html image button
Via Link > link: I can see the link I want to edit and have access to edit property
would be fine if the report > link change from create link to edit link once the link have been created. It will save a lot of time searching how to do it