My problem is only, I don´t realy like _attsync, because if you have "old" block in drawing and change or paste attributes it changes automatically all attributposition to default.
At the first time, I noticed that attsync, will restore values of atributes to the defaults, with using vla-addAttribute, that problem was solved, but, until now, I didn't notice the problem with positioning of attributes.
First I thought that solution is locking of the position of attdef and atribute and then to attsync, but, I did not have success with that. Right now, I think that only solution is to save attribute values in to the list, and then, using that list, to redefine attributes after attsync. Or maybe is even better, to make a new command which will replace attsync.