Select Tools > Options and click the Transformers icon.
Truncate names: This option allows you to specify text abbreviations from the left, right or center. For example, if your text consists of frequently occurring prefixes, you may want to truncate names from either the center or the left so you can see more text at a glance.
Show Transformer Version: With new releases of FME, sometimes we also upgrade transformers to include new functionality. If you have a large workspace whose history spans multiple FME versions, it may also span multiple transformer versions. Previous versions of transformers will work the same way they always did, but you might find it useful to also display the transformer versions in your workspace, especially if you have different versions of the same transformer.
Enables a feature that allows you to drop a transformer onto an existing connection. The defaults you choose here for the input and output ports will be the default port connections.