</p>
<p>
Trees are calculated on either the complete alignment, or just the
- currently selected group of sequences, using the functions in the <strong>Calculate→Calculate
- tree</strong> submenu. Once calculated, trees are displayed in a new <a
+ currently selected group of sequences, via the <a href="calculations.html">calculations dialog</a> opened from the <strong>Calculate→Calculate
+ Tree or PCA...</strong> menu entry. Once calculated, trees are displayed in a new <a
href="../calculations/treeviewer.html">tree viewing
window</a>. There are four different calculations, using one of two
distance measures and constructing the tree from one of two