The spin-1/2 quantum magnet Cu3(OH)4SO4, isostructural to the natural mineral antlerite, is a one-dimensional compound with two nonequivalent copper sites, arranged into triple chains. While it was initially thought that one of the Cu spins shows idle-spin behavior, more recent experiments uncovered a complex magnetic phase diagram with multiple field-induced magnetic phases and various metamagnetic transitions. This motivated us to study this compound in more detail as a strongly frustrated low-dimensional quantum-spin magnetic system. In our group, we could synthesize large amounts of antlerite in the form of tiny single crystals or powder, which have been already measured at ANSTO and at D1B, ILL. While we have detailed temperature maps that demonstrate the presence of at least one metamagnetic phase transition from a commensurate to incommensurate magnetic phase, the lack of sufficient measurement time did not allow us to measure data with sufficient statistics to refine the magnetic structure. We therefore apply for a continuation experiment to complete the measurements.