public Bookmark createBookmark(String address, String bookmarkType, String category,
			String comment) {
		return tx(() -> {
			BookmarkManager bookMgr = program.getBookmarkManager();
			Address addr = addr(address);
			Bookmark bm = bookMgr.setBookmark(addr, bookmarkType, category, comment);
			return bm;
		});
	}
Creates a sting data type instance at the specified address, repeated {@code N} times.

@param addressString address.
@param dt {@link AbstractStringDataType} string type to place at address.
@param n repeat count.
Ghidra/Features/Base/src/main/java/ghidra/program/database/ProgramBuilder.java