In example:
I have a track, with a pattern sequence 0,1,++,2,3
Now i think i want to add some thing at the beginning and get 4,5,0,1,++,2,3
But now i also would like to renumber the patterns as they appear in the sequence to 0,1,2,3,++,4,5 while the pattern content it self remains as it is.
The other way is to add some pattern at the end and copy each pattern content to its place at the end to get some free patterns at the beginning with the correct sequence number.