Image thumbnail in description field

Hi to all!

Is it possible to minimize an image in the editor for description field and flexicontent will create a thumbnail and a lightbox on click? or something similar?
maybe im in the wrong forum and joomla has something like that already integrated what flexicontent also can use, but i don't get it working.
Or can i get this to work with a plugin?

thanks for help in advance

I only need an option to minimize an image and on click a the full size image appears.

In general , we could add something like this to our component, it is nice and flexible.

-- There are at least 2 joomla plugins that do this: 1. you insert and specify image's size in editor
2. When content is display the plugin replaces the image with a thumbnail that will be zoomed on click.
Joomla Plugins:
Joomslide (1.5)
Imagesizer (1.5 / 2.5)

NOTE: you could say to plugins to replace all images, or only those with a specific CSS class e.g. only those with "joomslide" CSS class