[Plugin: All-in-One Event Calendar] Month / Week / Agenda – display on/off for each

I think you already have solved the problem.
But a clue to other users, who have the same question:

Put the following code into your style sheet. That will turn off the buttons.

ul.ai1ec-view-tabs a#ai1ec-view-month
{
	display: none;
}
ul.ai1ec-view-tabs a#ai1ec-view-week
{
	display: none;
}
ul.ai1ec-view-tabs a#ai1ec-view-agenda
{
	display: none;
}

That’s all. If you want to turn off all three buttons with one code, use the following:

ul.ai1ec-view-tabs
{
	display: none;
}

…and the day tab with

ul.ai1ec-view-tabs a#ai1ec-view-oneday
{
display: none;
}

Cheers! ??