Calibration bar of flurorescent intensity-how to make global to apply all images and modify values on the bar

Hi folks
quite new to fiji and was hoping to get some advice regarding the calibration bar in fiji.
is there a way to set scale of calibration bar to apply to all images to be analyzed? (something similar to the likes of a scale bar global option)
Also; how do i modify the values of the calibration bar to represent specific colors? (actually i want to invert the colors of the calibration bar)
hope to get some suggestions!
*will put up a sample image later

Hi @kavator

Is this related to your needs?

That will certainly help :slight_smile: