This idea has been merged into another idea. To comment or vote on this idea, please visit KF-I-4929 Re: New Supplier / Customer views - Default to "Transactions" rather than "Profile".
Building on the other request for defaulting to transactions... the default view should I.m.h.o. be Purchases for Supplier tab and Invoices for Customer Tab. This would reflect the previous user experience and you still have the option to change the settings to achieve all the needs of filtering and searching... but the default view on opening should replicate the historical view please.