private FieldLocation getFieldLocation(Address addr) {
		ByteViewerComponent c = panel.getCurrentComponent();
		ProgramByteBlockSet blockset = (ProgramByteBlockSet) plugin.getProvider().getByteBlockSet();
		ByteBlockInfo bbInfo = blockset.getByteBlockInfo(addr);
		return c.getFieldLocation(bbInfo.getBlock(), bbInfo.getOffset());
	}
Test editing in the Byte Viewer.
Ghidra/Features/ByteViewer/src/test.slow/java/ghidra/app/plugin/core/byteviewer/ByteViewerPlugin2Test.java