We do have a sequence wizard in SQL Navigator, it’s called Sequence Editor. You can create a sequence with Sequence Editor by right-clicking the Sequences node in DB Navigator or DB Explorer and choosing Create.
To assign a sequence to a table column (i.e. to make a column auto-increment), if that’s what you want to do, you need to also use the Table Editor. In the Columns grid for your table, just enter the Default value for your column as .next, where is your sequence name; every time you add a new row to the table, it will be populated with the next value of the sequence.
Hope this helps,