Common latchpins with 74HC595 Shift Register

I made an incomplete schematic. I has planned on completing it, but its pretty busy as it is, and If I put in the rest of the wires, it will obscure the drawing. So... The rest of the wiring is the standard wiring, except they are not daisy chained. I was thinking it would be nice to have a switch between each chip to switch them from chained, to not chained.

I didnt draw in the LEDs, resistors, decoupling caps, or the short between + and MR.

It seems to me there are a few more opportunities to add some shift registers.

Would it be beneficial to add a shift registers to:

MR instead of shorting it to the +, what if we used a shift register to send it high?

OE What if we used a shift register to send it low, instead of shorting it to ground?

Switching from daisy-chained, to 8 individual eight bit registers. (Q7 to DS)

It would be interesting to see what you could do with it, but I have many other things that I want to do, so I wont likely try it too soon.