How to extend BaseEnum Ax7

Today I had some misunderstanding of extension concept. I just wanted to create an extension of NumberSequence, but couldn't do it.
After some investigation I found out that only those BaseEnums which have IsExtendible propety set to true are allowed to extend.

So bear this info in mind during create own enums or extensions from standard enums :)

Happy DAX-ing!

Remove "Close" button from form

Hi All!

Today I found that I fogrot how the Close button could be hidden from standard AX form.
But after google helped me and I share with you this information:

All you need to do is set the "Status bar style" property to SimpleWithoutClose.

And that's it :) Profit.