Yes, Sublime Text can use tabs for indentation. Here are the examples rewritten with tabs:

Example 1:

```
def greet(name):
	if len(name) > 0:
		print("Hello, " + name + "!")
	else:
		print("Hello there!")
```

Example 2:

```
for i in range(1, 11):
	print("\t" + str(i))
```

Example 3:

```
def calculate_sum(numbers):
	total = 0
	for num in numbers:
		total += num
	return total
```

In the above examples, each level of indentation is represented by a single tab character. You can copy and paste these examples into Sublime Text and use tabs for indentation. However, it's important to note that using tabs and spaces for indentation can sometimes cause issues with consistency and formatting, so it's a good idea to choose one method and stick to it throughout your code.
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