Hey,

You can create new sequences by going to Settings-->Technical-->Sequnces.

There you can create a new seq or edit an existing one, if you want different sequences for different companies then assign a company in the company parameter of the form.

Regards,

Divyansh

it is ok i searched youtube i only become able to find it by going to list view in accounting then select the document and go action to choose resequence 

a bit complicated as its not in settings or configurations

i did already activate it

nothing called Technical in Menubar of apps 

in sales the bar is for (orders, to invoice, products, reporting, configurations)
in accouning app the menu bar is (dashboard,cusomers, vendors, accounting,reporting, configurations) 

its hidding under actions by selecting from list view only

many thanks