Can we prepare any ICs similar to decoder or demux , but for selecting multiple pins simultaneously?
Forget about using a decoder at all. Simply drive the enables directly from pins on your MCU. Then you can select any combination, including more than two at a time if necessary.

Note that to select an arbitrary combination of 0, 1 or 2 outputs, you need a total of 8 output pins from your MCU anyway (3 select bits and an enable bit for each of two decoders), so you might as well use the same 8 bits to directly control the enables.