Many physical systems have been proposed as electron spin qubits including nitrogenvacancy centres in diamonds and quantum dots in silicon, though the top-down synthesis of these spin centres makes precise control of inter-spin coupling difficult, complicating their use as multi-qubit structures. This led to the proposal of Molecular Electron Spin Qubits (MESQs), in which bottom-up synthesis allows for more precise control of inter-spin interactions. Progress towards using MESQs as single qubits has been remarkable, particularly in the extension of coherence times from the micro-second to the milli-second regimes. The simplest possible multi-qubit MESQ is a molecular dimer in which two electron spins are coupled by their dipolar interactions, however for the qubits to be manipulated independently it is ideal to be able to 'switch' the inter-spin interaction off. While many candidates have been proposed, both with and without switchable interactions, no multielectron-qubit MESQ gates have yet been demonstrated experimentally as far as we are aware. (We note the recent demonstration of quantum teleportation in an electron spin system, mediated by an optically excited entangled radical pair. However, here there is no control over how the entanglement is generated, it only happens by virtue of the selection rule for the optical excitation of the radical pair.)