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<head><title>Hidden Regions</title></head>\r
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-Now you see them, now you dont \r
+<p><strong>Hidden Regions</strong> </p>\r
+<p>To <strong>hide selected sequences </strong>from an alignment, use the "View \r
+ -> Hide -> Selected Sequences" menu item or simply select "Hide \r
+ Sequences" from the Popup menu after a right click on the sequence Ids. \r
+</p>\r
+<p>Hidden sequences will not be used in any calculations, editing or web service \r
+ alignments performed on visible sequences. </p>\r
+<p>A more advanced hide involves a right-mouse click on a sequence, then selecting \r
+ "SequenceID -> Represent Group with SequenceId". Using this method \r
+ of hiding sequences, any edits performed on the visible group representative \r
+ will be propogated to all the sequences in that group. <br>\r
+ The hidden sequences will not be used in any calculations or web service alignments. \r
+</p>\r
+<p> </p>\r
+<p>To <strong>hide selected columns</strong> from an alignment, use the "View \r
+ -> Hide -> Selected Columns" menu item, or right click within a region \r
+ of selected columns in the scale above the alignment (only available in non \r
+ wrapped mode) and select "Hide Columns". </p>\r
+<p>Hidden columns will not be used in any calculations. This allows you to eg. \r
+ create trees from the visible alignment and ignore any poorly aligned sections \r
+ of the alignment, without cutting and deleting them permanently from your alignment.<br>\r
+ It is possible to retrieve the input data to any trees, PCA analysis windows \r
+ which were created from alignments containing hidden columns by using the "File \r
+ -> Input Data..." menu item from the tree window. </p>\r
+<p> Editing the alignment is bound by the hidden columns, ie you cannot move residues \r
+ across a hidden column boundary.</p>\r
+<p>Any web service alignments performed on sequences which contain hidden columns \r
+ send the alignment as a series of chunks delimited by the hidden columns. </p>\r
+<p> </p>\r
+<p> </p>\r
+<p> </p>\r
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