You can right click an object in a drawing and create a legend item for it. TPC uses whatever information is has about the object to create the description of the item in the legend, but you can always right click the legend item description and choose Properties to change it.
Lines and Polyline – TPC uses the line name as the description (i.e. Solid).
Point Symbols – TPC uses the symbol name as the description (i.e. Gas Valve).
Blocks – TPC uses the block name as the description.
The item you add to the legend is appended to the end of the legend, but you can always drag-n-drop it anywhere within the legend.
Text Legend Item dialog
Legend Item Description dialog
Append Text Item to Legend Command
Append Fill Item to Legend Command
Append to Legend Command
Adding a Fill to a Legend
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