"Also being able to view and resize the 'Top' & 'Bottom' panes independent from 'centre' pane would improve workflow - This would also negate the laborious use of the scroll bar."
To be able to open each pane in a seprate window, each resize-able, drag-able, that could overlay each other;
with the current focus being on whichever pane was clicked in last. (ie standard Windows behaviour)
Keep up the good work, Kevin et al @ Arturia. Spark is a great bit of Kit & much fun......