* Means "go ahead" (with reason in parenthesis)
- Means "can wait" (with reason in parenthesis)

Sources:
High priority
* ESS_butterfly.comp (Enables all ESS instruments)
* SNS_source.comp (Enables remaining SNS instruments)
* Moderator.comp (Is nice and simple
Low priority
- ESS_moderator.comp (Legacy relevance only)
- ESS_moderator_long_2001.comp (Legacy relevance only)
- ESS_moderator_short.comp (Legacy relevance only)
- Source_gen4.comp (Very similar to Source_gen, can wait)
- Source_multi_surfaces.comp (Very similiar to Source_gen, can wait)

Optics:
High priority
* Elliptic_guide_gravity.comp
* FermiChopper_ILL.comp
* Fermi_chop2a.comp
* Guide_honeycomb.comp
* Lens.comp
* Mirror.comp
* Guide_anyshape.comp (Relies on interoff-lib)
* Spherical_Backscattering_Analyser.comp
* PerfectCrystal.comp
* Diaphragm.comp (IS in fact ported, it is the same as Slit)
Low priority
- CavitiesIn.comp (Semi-exotic, a type of slit, can wait)
- CavitiesOut.comp (Semi-exotic, a type of slit, can wait)
- multi_pipe.comp (A type of slit, can wait)
- Guide_gravity_psd.comp (Like Guide_gravity, with built-in monitor)
- Guide_m.comp (Only differs wrt. Guide by independent m-val per face. Merge?)
- Guide_wavy.comp (Only marginally different from Guide, can wait)
- Mirror_Curved_Bispectral.comp (Niche)
- Mirror_Elliptic.comp (Niche)
- Mirror_Elliptic_Bispectral.comp (Niche)
- Vertical_T0a.comp (Niche)
- Vitess_ChopperFermi.comp (Slow)
- Guide_four_side.comp (Nasty)
- Guide_four_side_10_shells.comp (Nasty)
- Guide_four_side_2_shells.comp (Nasty)

"Samples" and the like:
High priority
* Absorber.comp (should be easy, can be used in imaging instr)
* Phonon_simple.comp (simplest inelastic)
* Refractor.comp
* Res_sample.comp
* TOFRes_sample.comp
* SANS_benchmark2.comp (People think it is nice ... Try with spheres2 from master first??)
* Spot_sample.comp (Should be simple. Is included in Mantid-oriented spectr and SNS_ARCS)
* SasView_model.comp
Low priority
- SANSCurve.comp
- SANSCylinders.comp
- SANSEllipticCylinders.comp
- SANSLiposomes.comp
- SANSNanodiscs.comp
- SANSNanodiscsFast.comp
- SANSNanodiscsWithTags.comp
- SANSNanodiscsWithTagsFast.comp
- SANSPDB.comp
- SANSPDBFast.comp
- SANSShells.comp
- SANSSpheres.comp
- Sample_nxs.comp 
- SiC.comp
- Single_crystal_acc.comp (Old Dresden acc tricks, serves as inspiration only
- Multilayer_Sample.comp (Relies on GSL)


Monitors:
High priority
* DivLambda_monitor.comp
* DivPos_monitor.comp
* Monitor_Sqw.comp
* Res_monitor.comp
* PSDcyl_monitor.comp
* TOFSANSdet.comp
Low priority
- TOFlog_monitor.comp
- Monitor_4PI.comp
- PSD_monitor_psf.comp
- PSD_monitor_psf_eff.comp
- Radial_div.comp
- Monitor_Optimizer.comp
- PSDlin_diff_monitor.comp

Polarisation:
High priority
* Analyser_ideal.comp / PolAnalyser_ideal.comp (identical?)
* He3_cell.comp
* MeanPolLambda_monitor.comp
* Pol_mirror.comp / Monochromator_pol.comp (identical?)
* PolLambda_monitor.comp
* Pol_FieldBox.comp
* Pol_constBfield.comp
* Pol_Bfield.comp
* Pol_Bfield_stop.comp
Low priority
- Pol_bender_tapering.comp
- Pol_guide_vmirror.comp
- Pol_pi_2_rotator.comp
- Foil_flipper_magnet.comp
- Pol_triafield.comp
- Pol_simpleBfield.comp
- Pol_simpleBfield_stop.comp


Misc
* Rotator.comp
* Derotator.comp
- Source_Optimizer.comp
- Source_adapt.comp
- Adapt_check.comp
- Beam_spy.comp
- Scatter_log_iterator.comp
- Scatter_log_iterator_stop.comp
- Scatter_logger.comp
- Scatter_logger_stop.comp

Dedicated issue #943 - https://github.com/McStasMcXtrace/McCode/issues/943
union/Incoherent_process.comp
union/Powder_process.comp
union/Single_crystal_process.comp
union/Template_process.comp
union/Union_box.comp
union/Union_conditional_PSD.comp
union/Union_conditional_standard.comp
union/Union_cylinder.comp
union/Union_logger_1D.comp
union/Union_logger_2DQ.comp
union/Union_logger_2D_kf.comp
union/Union_logger_2D_kf_time.comp
union/Union_logger_2D_space.comp
union/Union_logger_2D_space_time.comp
union/Union_logger_3D_space.comp
union/Union_make_material.comp
union/Union_master.comp
union/Union_sphere.comp


Event handling
* MCPL_input.comp
* MCPL_output.comp
- Virtual_mcnp_input.comp
- Virtual_mcnp_output.comp
- Virtual_mcnp_ss_input.comp
- Virtual_mcnp_ss_output.comp
- Vitess_input.comp
- Vitess_output.comp
- Virtual_tripoli4_input.comp
- Virtual_tripoli4_output.comp