The best way to convince you is to show you, at a glance, screenshots from a simple example. Let's consider the following snippet of XML document (some will recognize a portion of TAGML) with the corresponding graphic generated by TAXI :
<node cat="apa" id="ap_" type="std"> <narg type="bot"> <fs> <f id="X1" name="gen"/> <f id="X0" name="num"/> <f id="X2" name="restr"/> </fs> </narg> <node cat="a" type="anchor"> <narg type="bot"> <fs> <f id="X1" name="gen"/> <f id="X0" name="num"/> </fs> </narg> <narg type="top"> <fs> <f id="X2" name="restr"/> </fs> </narg> </node> </node>
To edit it, you open it in TAXI.
We will perform a simple copy/paste on a node. We double-click on the node named
a to highlight it. On the left-hand side you can see the highlighted node and
its content. Note that this node is also selected (yellow background).
We copy it (by using Ctrl+C, or the icon in the tool bar, or via the menu).
According to the document's DTD, TAXI proposes many locations at which the
copied node can be pasted (only one in this example).
We paste the content of the clipboard at the selected location (by using Ctrl+V,
or the icon in the tool bar, or via the menu). The resulting document is correct, so
TAXI can transform it to obtain the new graphic showing the changeover (see
How does it work ? for further explanations).
The graphic is now up to date and we can see the outcome of our copy/paste (you can
notice that the node we copied is still in the clipboard. Thus, TAXI shows the
new locations at which it can be pasted).