Watching vars accessed via base register

[howprice]

Is there a way to watch variables accessed via a base register? For example:

; 'vars' data structure, representing application state
	RSRESET
systemVBR:	rs.l	1
oldView:	rs.l	1
oldDMACON:	rs.w	1
...
vars_SIZEOF:	rs.b	0
...
vars:
    dcb.b         vars_SIZEOF
...
	lea	vars(pc),a5		; A5 points to vars throughout
	move.l	a4,systemVBR(a5)
...
	movea.l	graphicsBase(a5),a6
        move.l	gb_ActiView(a6),oldView(a5)
...
	lea	_custom,a6			; A6 = $dff000 throughout
	move.w	DMACONR(a6),oldDMACON(a5)	; store system DMACON $dff002

It would be great if systemVBR(a5), oldView(a5) and oldDMACON(a5) could be added to the Watch window. Is this possible?

My current workaround is to view vars as hex and manually work out offset to read the value. Should something like A5+oldDMACON work? I hope I am missing something.

Many thanks