- <em>Path to Chimera program</em> - Optional, as Jalview will search
- standard installation paths for Windows, Linux or MacOS. If you have
- installed Chimera in a non-standard location, you can specify it
- here, by entering the full path to the Chimera executable program.
- Double-click this field to open a file chooser dialog.
+ <em>Path to Chimera/X/Pymol program</em> - Optional, as Jalview will search
+ standard installation paths for Windows, Linux or MacOS. If Jalview cannot locate the installation for your selected structure viewer, a dialog will be shown. If you have
+ installed the chosen viewer in a non-standard location, you can specify it
+ here, by entering the full path to its executable.<br/>For Chimera, locate the path to the chimera program, similarly for ChimeraX and Pymol. Rather than typing in the path, you can also <em>double-click this field</em> to open a file chooser dialog.</p>
+ <p>
+ <em>Sequence <-> Structure Mapping Method</em> - This setting controls whether
+ Jalview attempts to retrieve mappings between Uniprot protein
+ sequences and 3D structures in the PDBe with SIFTS, or constructs a
+ mapping by conservative alignment between the sequences and chains
+ in the 3D structure data using the Needleman and Wunsch algorithm.
+ SIFTS is enabled by default.
+ <p>
+ <em>PDB Fields shown in Search and Structure Summaries</em> - ticks
+ in this table indicate fields shown by default when browsing results
+ of a free text search via the PDB sequence fetcher, or 3D structures
+ offered by the 3D Structure Chooser.<p>