Get list of spectrometers requesting user to connect one or abort if none found.
See also
Other interactive acquisition utility functions:
choose_ch_interactive()
,
choose_sr_interactive()
,
f.trigger.message()
,
protocol_interactive()
,
set_attributes_interactive()
,
set_folder_interactive()
,
set_seq_interactive()
,
set_session_name_interactive()
,
set_user_name_interactive()
,
tune_interactive()