The use of tensions is quite common in jazz music. For an example, I have trouble putting this type of chords (with tensions) in BIAB:-

C#7/BMaj7b5

Left Hand on the piano: C# F G# B
Right Hand on the piano: B D# F A#

To play the C#7/BMaj7b5 chord, both Left and Right hand pressed the notes described above simultaneously.

So, how can I insert this particular chord in BIAB? Thanks.