Is it possible to change the smileys near the reply form for my own, in order not to go to the full list of smileys?

No, those are standard emoticons, they cannot be changed.

May I add my own smileys?

Yes, you may. Create sml folder in File Manager and upload there your smileys. Only .gif format is accepted, number of smileys is 100. Standard smileys will remain, new smileys will be added to them.

How can I remove smileys from the list of All smileys?

Forbid users to use smileys (see User group settings).

Why are there no 3D smileys in the default sets?

One 3D smiley weighs more than a whole set. That’s why we haven’t added them.

Is it possible to remove standard smileys?

No.

Is it possible to write added smileys as tags, e.g. ":twisted:"?

No.

Will the smileys from the folders sml2, sml3 work?

No.

How can I add my own smileys to the standard collection?

Use Smileys editor.

I’ve added 16 own smileys. But when I want to change them they remain the same. What should I do?

You can’t edit smileys. You should remove them and add new ones.

Is it possible to automatically substitute smileys, after they have been updated, in all written posts ?

No.

Is it possible to limit the use of smileys in posts?

No. You can only forbid using them at all.