Is there a rule that states if a comma is needed in the following case: Doing this, does that? The following sentences made me ponder on it: Clicking on a job within a project(,) opens the page where the button is located. Cloning a job(,) allows you to set new settings.
For the example sentences, no.
In general, it depends on what role the gerund phrase takes.
If the gerund begins a phrase functioning as an adverb, then yes on the comma.
Reading your sentences, I do not advise using a comma.
If the gerund begins a phrase that is the subject of the sentence, as in your examples, then no comma.
Beginning a sentence with a gerund does not always require one to use a comma.
In your examples, the entire phrase before each "(,)" is the subject of the respective sentence.