Sequence annotation widget

It was always possible to add any type of annotation to any component, including sequence annotations, in TinkerCell, but this had to be done programmatically, i.e a couple of lines of python or octave code. For sequence annotation, now the sequence-viewer plug-in also provides a simple widget for adding position and description to the selected part. The table will be saved as "sequence annotation", i.e it can be accessed via a python or octave program using:

p = tc_find("cod2");   #get the part

sa = tc_getTextDataTable(x, "sequence annotation"); #get sequence annotation

tc_getTableValue( sa, 0, 0)