Altium Designer: Modify IC symbols in-sheet to increase space
No

We have started to always think of an application case to design a "nice", useful symbol. Takes some time but it's absolutely worth it.

Of course, this will not always fit your use case, but it's the best you can get; plus, you can re-use it for other schematics.

Examples:


Place VDD and GND pins such that you can easily place a cap in between, maybe even in an extra sub-component if there are many of those.
Place pins in groups so you can easily place a harness or bus, ..


I got interrupted yesterday, so I quit this post early.

In fact, it is possible to move pins (double click the symbol, then deselect "Lock Pins") but you will lose all those changes if you perform a library update, plus you cannot edit any of the other primitives.