one can modify the length of the given array. I use it as a buffer (255 bytes).
To me it is always 255 bytes long (Globals), but... Maybe a stupid question but how is it's length reduced e.g. to 5? Is it redefined? Usually you use a length indicator but the array itsself stays 255 bytes long (as it is a buffer).
I'm not sure that I understand the question. B4R Array object has a length field. You can put any value you like in this field. It will not change the actual size.