Can I fix fence panels to concrete posts after neighbour

Hudson Fence Panel - Mid Grey slot in concrete fence panels 4ft 6″ Concrete Slotted 3-Way Post 4′ 6″ Concrete Slotted 3-Way Post Heavy Duty Construction 50mm Slots to fit standard Fence Panels Steel Re- slot drop Solid, Simple Fence Panel Posts with Zero Fastening required​​ The posts feature 'H'Slots

slot car power supply Use our specially designed concrete u channel adapter to slot our composite fence panel slats into your concrete posts Choose your fence height