sub/sup in CKeditor

[mel47]

Hi

I need to write NH₄⁺ in my body field (using CKeditor). But, using source input, the marking is always stripped out and there is no button for sub and superscript.

How I could achieve that?

Thanks

[adrian]

On the Input tab of the field's settings:

PS - what's the website? That's the first time I have seen someone on the forums, besides myself, need to enter Ammonium

[mel47]

Thanks!

My lab's website. Not finish at all but I will show eventually.