For sure you can do this, from the earliest days of the war. Here is an example from the first engagement of the British Expeditionary Force near Mons. It comes from the war diary of 2/Royal Irish Regiment (a BEF battalion) on 23 August 1914. This was the day of the Battle of Mons.
"...the [battalion] was distributed [during the previous night] as follows:
HdQrs, D Coy and Regt Transport at ST SYMPHORIEN
A and C coys, MGs and Regt Scouts at VILLERS ST GHISLAIN, with a Fd Co R.E. attached for the purpose of assisting in defensive works.
B coy at GIVRY
12.30 pm Dinners were being prepared for the Battn on side of road, when order was received to at once support the MIDDLESEX.
Lt Col Cox ordered 1st Line Transport back under cover of houses in the Town and proceeded with the Battn with utmost speed to S.E. corner of cemetery. The Battn then turned about and moved round S.W. corner of Cemetery. "A", "C" and 2 platoons B Coy under Major St Leger moved forward at the double into the Quarry NW of Cemetery and prolonged the right under curve of a sunk[en] road. Col Cox meantime hearing that the enemy were close up to S.E. corner of Cemetery turned D Coy and the remaining 2 platoons of B Coy about and ordered Capt Elliot with D Coy to take up a position N of the road turning E from the Cemetery.
Orders having just been received to reinforce the GORDON HIGHLANDERS at X roads MONS-BINCHE MONS-GIVRY roads, 2 sections B Coy under 2 Lieut Shine were despatched to this point. 2 sections of B Coy under Lieut Ferguson were placed within field W of Cemetery covering the exit between Hosp and Cemetery. The remaing platoon of B Coy under Major Daniell were ordered to prolong the right of D Coy."
The various companies, platoons and sections were all in the same overall geographic location but dispersed enough that a platoon or even 2/3 sections only would feature on a Bolt Action table.
Robert