Get a list of logical arrays indicating which parameters correspond to peak positions
omega0_param_idx(
param_list,
dims = seq_len(dim(param_list[["group_list"]][["omega0"]])[1]),
peaks = seq_len(dim(param_list[["group_list"]][["omega0"]])[2]),
specs = seq_len(dim(param_list[["group_list"]][["omega0"]])[3])
)