Allow to change size and color of the symbols

"Explore observations for this region" does not work if the object is not in the center of the image FOV

In the "soft Xrays layer" CDS EPIC PN, hips are not displayed

Update the XMM-Newton MOCs

Missing links from XMM OM catalogue to XSA OM Catalogue

Make this Userecho more easy to find, should be possible to click it from the main panel

Generic EPIC FOV for observations planning

Declinations between 0 and -1 are not found

Under Spectra it would be nice to show EPIC spectra of the catalogue sources